Organization record
GREAT NORTHERN IRON ORE PROPERTIES
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| capex | {"amount": 23206, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2013-12-31 | sec_edgar |
| capex | {"amount": 23206, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2013-09-30 | sec_edgar |
| capex | {"amount": 7641, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "currenc | 2013-06-30 | sec_edgar |
| capex | {"amount": 29990, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-12-31 | sec_edgar |
| capex | {"amount": 0, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "currency": | 2012-09-30 | sec_edgar |
| capex | {"amount": 18685, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2011-12-31 | sec_edgar |
| capex | {"amount": 18685, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2011-09-30 | sec_edgar |
| capex | {"amount": 0, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "currency": | 2011-06-30 | sec_edgar |
| capex | {"amount": 38695, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2010-12-31 | sec_edgar |
| capex | {"amount": 22486, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2010-09-30 | sec_edgar |
| capex | {"amount": 11303, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2010-06-30 | sec_edgar |
| capex | {"amount": 17200, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 899283, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 919094, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 761492, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 1084596, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 712197, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 743693, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 519571, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 997424, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 643431, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 858619, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 628170, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 589334, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 750947, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 941436, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 805039, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 538868, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 668310, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 760062, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 599743, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 924234, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 1242939, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2008-12-31 | sec_edgar |
| cashflow_financing | {"amount": -7350000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2014-06-30 | sec_edgar |
| cashflow_financing | {"amount": -3975000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2014-03-31 | sec_edgar |
| cashflow_financing | {"amount": -18900000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-12-31 | sec_edgar |
| cashflow_financing | {"amount": -15000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-09-30 | sec_edgar |
| cashflow_financing | {"amount": -11250000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-06-30 | sec_edgar |
| cashflow_financing | {"amount": -7875000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2013-03-31 | sec_edgar |
| cashflow_financing | {"amount": -21750000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-12-31 | sec_edgar |
| cashflow_financing | {"amount": -16500000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-09-30 | sec_edgar |
| cashflow_financing | {"amount": -12000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-06-30 | sec_edgar |
| cashflow_financing | {"amount": -8625000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2012-03-31 | sec_edgar |
| cashflow_financing | {"amount": -19500000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2011-12-31 | sec_edgar |
| cashflow_financing | {"amount": -13500000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2011-09-30 | sec_edgar |
| cashflow_financing | {"amount": -9000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-06-30 | sec_edgar |
| cashflow_financing | {"amount": -5625000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-03-31 | sec_edgar |
| cashflow_financing | {"amount": -16650000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-12-31 | sec_edgar |
| cashflow_financing | {"amount": -11025000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-09-30 | sec_edgar |
| cashflow_financing | {"amount": -6900000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2010-06-30 | sec_edgar |
| cashflow_financing | {"amount": -14850000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2009-12-31 | sec_edgar |
| cashflow_investing | {"amount": -400000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2014-06-30 | sec_edgar |
| cashflow_investing | {"amount": 100000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2014-03-31 | sec_edgar |
| cashflow_investing | {"amount": 4301794, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2013-12-31 | sec_edgar |
| cashflow_investing | {"amount": 4126794, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2013-09-30 | sec_edgar |
| cashflow_investing | {"amount": 3342359, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2013-06-30 | sec_edgar |
| cashflow_investing | {"amount": 4550000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2013-03-31 | sec_edgar |
| cashflow_investing | {"amount": -2904990, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-12-31 | sec_edgar |
| cashflow_investing | {"amount": -3250000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-09-30 | sec_edgar |
| cashflow_investing | {"amount": -1950000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-06-30 | sec_edgar |
| cashflow_investing | {"amount": 975000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2012-03-31 | sec_edgar |
| cashflow_investing | {"amount": -1818685, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-12-31 | sec_edgar |
| cashflow_investing | {"amount": -1818685, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-09-30 | sec_edgar |
| cashflow_investing | {"amount": -1100000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-06-30 | sec_edgar |
| cashflow_investing | {"amount": 225000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2011-03-31 | sec_edgar |
| cashflow_investing | {"amount": 911305, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2010-12-31 | sec_edgar |
| cashflow_investing | {"amount": 777514, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2010-09-30 | sec_edgar |
| cashflow_investing | {"amount": 988697, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curre | 2010-06-30 | sec_edgar |
| cashflow_investing | {"amount": -1117200, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2009-12-31 | sec_edgar |
| cashflow_operating | {"amount": 14387086, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2014-12-31 | sec_edgar |
| cashflow_operating | {"amount": 10506897, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2014-09-30 | sec_edgar |
| cashflow_operating | {"amount": 7799295, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2014-06-30 | sec_edgar |
| cashflow_operating | {"amount": 4247399, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2014-03-31 | sec_edgar |
| cashflow_operating | {"amount": 14666972, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2013-12-31 | sec_edgar |
| cashflow_operating | {"amount": 10973468, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2013-09-30 | sec_edgar |
| cashflow_operating | {"amount": 7783781, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2013-06-30 | sec_edgar |
| cashflow_operating | {"amount": 3678993, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2013-03-31 | sec_edgar |
| cashflow_operating | {"amount": 24547474, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2012-12-31 | sec_edgar |
| cashflow_operating | {"amount": 19857672, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2012-09-30 | sec_edgar |
| cashflow_operating | {"amount": 13827223, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2012-06-30 | sec_edgar |
| cashflow_operating | {"amount": 7488387, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2012-03-31 | sec_edgar |
| cashflow_operating | {"amount": 21401322, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2011-12-31 | sec_edgar |
| cashflow_operating | {"amount": 15591811, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2011-09-30 | sec_edgar |
| cashflow_operating | {"amount": 10236729, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2011-06-30 | sec_edgar |
| cashflow_operating | {"amount": 5270558, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2011-03-31 | sec_edgar |
| cashflow_operating | {"amount": 15482771, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2010-12-31 | sec_edgar |
| cashflow_operating | {"amount": 10083314, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2010-09-30 | sec_edgar |
| cashflow_operating | {"amount": 5586812, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2010-06-30 | sec_edgar |
| cashflow_operating | {"amount": 15648495, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2009-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-09-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-03-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-09-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-03-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-09-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-03-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-09-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 1500000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2010-12-31 | sec_edgar |
| current_assets | {"amount": 11395609, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| current_assets | {"amount": 13502113, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| current_assets | {"amount": 14600586, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| current_assets | {"amount": 13438597, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| current_assets | {"amount": 10631889, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| current_assets | {"amount": 9852107, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| current_assets | {"amount": 11316560, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| current_assets | {"amount": 10336604, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| current_assets | {"amount": 13143459, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| current_assets | {"amount": 15128817, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| current_assets | {"amount": 14697783, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| current_assets | {"amount": 11426148, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| current_assets | {"amount": 13773653, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| current_assets | {"amount": 11562887, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| current_assets | {"amount": 11177145, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| current_assets | {"amount": 11727325, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| current_liabilities | {"amount": 3558234, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| current_liabilities | {"amount": 4333594, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| current_liabilities | {"amount": 4100066, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| current_liabilities | {"amount": 3490156, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| current_liabilities | {"amount": 4067356, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| current_liabilities | {"amount": 4088982, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| current_liabilities | {"amount": 3859913, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| current_liabilities | {"amount": 3505056, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| current_liabilities | {"amount": 7979256, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| current_liabilities | {"amount": 5469356, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| current_liabilities | {"amount": 4678268, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| current_liabilities | {"amount": 3560622, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| current_liabilities | {"amount": 8753856, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| current_liabilities | {"amount": 6180856, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| current_liabilities | {"amount": 4640904, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| current_liabilities | {"amount": 5736556, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2014-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2014-09-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2014-06-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2014-03-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2013-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2013-09-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2013-06-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2013-03-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2012-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2012-09-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2012-06-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2012-03-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2011-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2011-09-30 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 1500000} | 2011-06-30 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 29760000, "currency": "USD"} | 2014-06-30 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 103350000, "currency": "USD"} | 2013-06-28 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 113355000, "currency": "USD"} | 2012-06-29 | sec_edgar |
| dei:EntityPublicFloat | {"amount": 154890150, "currency": "USD"} | 2011-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 749900, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2014-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 744071, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2013-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 732379, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2012-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 618991, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2011-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 613721, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2010-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 601769, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2009-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 9.35, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2014-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.6, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2014-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 7.35, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2014-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.5, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2014-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 4.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2014-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2014-03-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 10, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2013-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.6, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2013-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 7.35, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2013-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.5, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2013-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 4.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2013-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2013-03-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 14, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2012-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 8.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2012-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 3.5, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2012-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 5.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2012-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 3, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2012-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2012-03-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 15, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2011-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 4, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2011-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 9.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2011-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 3, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2011-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 5.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2011-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2011-03-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 12.25, "concept": "us-gaap:CommonStockDividendsPerShareDeclare | 2010-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 8.5, "concept": "us-gaap:CommonStockDividendsPerShareDeclared" | 2010-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 3.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2010-09-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 4.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2010-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.75, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2010-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 8, "concept": "us-gaap:CommonStockDividendsPerShareDeclared", | 2009-12-31 | sec_edgar |
| industry_sic | {"code": "6795", "scheme": "SIC", "description": "Mineral Royalty Traders"} | sec_edgar | |
| net_income | {"amount": 1366, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-12-31 | sec_edgar |
| net_income | {"amount": 13123533, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-12-31 | sec_edgar |
| net_income | {"amount": 11757716, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-09-30 | sec_edgar |
| net_income | {"amount": 3944, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-09-30 | sec_edgar |
| net_income | {"amount": 4242, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-06-30 | sec_edgar |
| net_income | {"amount": 7814238, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-06-30 | sec_edgar |
| net_income | {"amount": 3572, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2014-03-31 | sec_edgar |