CIK 0001433309
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_payable | {"unit": "HKD", "value": 111658000, "concept": "us-gaap:AccountsPayableCurrent"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"unit": "HKD", "value": 125854000, "concept": "us-gaap:AccountsPayableCurrent"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"unit": "HKD", "value": 105428000, "concept": "us-gaap:AccountsPayableCurrent"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"unit": "HKD", "value": 151436000, "concept": "us-gaap:AccountsPayableCurrent"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"unit": "HKD", "value": 121964000, "concept": "us-gaap:AccountsPayableCurrent"} | 2012-04-30 | sec_edgar |
| accounts_payable | {"unit": "HKD", "value": 127987000, "concept": "us-gaap:AccountsPayableCurrent"} | 2011-04-30 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 303681000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 278553000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 269419000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 257299000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 282869000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2012-04-30 | sec_edgar |
| accounts_receivable | {"unit": "HKD", "value": 270763000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2011-04-30 | sec_edgar |
| capex | {"unit": "HKD", "value": 7000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipm | 2023-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 0, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment | 2022-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 0, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment | 2021-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 48943000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEq | 2017-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 0, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment | 2016-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 23809000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEq | 2015-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 133239000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndE | 2014-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 54436000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEq | 2013-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 87224000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEq | 2012-12-31 | sec_edgar |
| capex | {"unit": "HKD", "value": 126167000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndE | 2012-04-30 | sec_edgar |
| capex | {"unit": "HKD", "value": 225904000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndE | 2011-04-30 | sec_edgar |
| capex | {"unit": "HKD", "value": 173313000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndE | 2010-04-30 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 42324000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2025-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 44171000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2024-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 96303000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2023-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 95646000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2022-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 98732000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2021-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 182697000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2020-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 185530000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 272750000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 300571000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 486222000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 311665000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 528527000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 348901000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 309862000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 199818000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2012-04-30 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 219757000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2011-04-30 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 151304000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVa | 2010-04-30 | sec_edgar |
| cash_and_equivalents | {"unit": "HKD", "value": 95039000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingVal | 2009-04-30 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 42324000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAn | 2025-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 44171000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAn | 2024-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 96303000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAn | 2023-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 95646000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAn | 2022-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 98732000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAn | 2021-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 182697000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashA | 2020-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 185530000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashA | 2019-12-31 | sec_edgar |
| cash_and_restricted_cash | {"unit": "HKD", "value": 272819000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashA | 2018-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -35321000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAc | 2024-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": 0, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities | 2023-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": 0, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities | 2022-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -80734000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAc | 2021-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": 0, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities | 2020-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -413761000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2019-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -403669000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2018-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -151376000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2017-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -843429000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2016-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -141878000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2015-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -68463000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAc | 2014-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -63118000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAc | 2012-12-31 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": -110180000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingA | 2012-04-30 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": 34176000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAct | 2011-04-30 | sec_edgar |
| cashflow_financing | {"unit": "HKD", "value": 28661000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAct | 2010-04-30 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 445000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActiv | 2024-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -7000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivi | 2023-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 0, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities | 2022-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 0, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities | 2021-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 29000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivi | 2020-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 325413000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAc | 2019-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 249245000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAc | 2018-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 82743000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAct | 2017-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": 675849000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAc | 2016-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -150437000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingA | 2015-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -368000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActi | 2014-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -73414000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAc | 2012-12-31 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -133728000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingA | 2012-04-30 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -227581000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingA | 2011-04-30 | sec_edgar |
| cashflow_investing | {"unit": "HKD", "value": -178277000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingA | 2010-04-30 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -1847000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAct | 2025-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -17256000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2024-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 664000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActiv | 2023-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -3086000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAct | 2022-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -3231000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAct | 2021-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -2862000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAct | 2020-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 1059000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActi | 2019-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 25482000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAct | 2018-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": -21689000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2017-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 191931000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2016-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 241687000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2015-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 256221000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2014-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 158303000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2013-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 247566000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2012-12-31 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 216628000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2012-04-30 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 261640000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2011-04-30 | sec_edgar |
| cashflow_operating | {"unit": "HKD", "value": 205113000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2010-04-30 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2025-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2024-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2023-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2022-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2021-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2020-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2019-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2018-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2017-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2016-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2015-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2014-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesIssued"} | 2013-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 14292228, "concept": "us-gaap:CommonStockSharesIssued"} | 2012-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 14352903, "concept": "us-gaap:CommonStockSharesIssued"} | 2012-04-30 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 16733196, "concept": "us-gaap:CommonStockSharesIssued"} | 2011-04-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2025-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2024-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2023-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "dei:EntityCommonStockSharesOutstanding"} | 2022-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2021-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2020-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2019-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2018-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2017-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2016-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2015-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 12938128, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 14292228, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 14352903, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-04-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 16733196, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-04-30 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 966539000, "concept": "us-gaap:CostOfRevenue"} | 2015-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 905280000, "concept": "us-gaap:CostOfRevenue"} | 2014-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 899400000, "concept": "us-gaap:CostOfRevenue"} | 2013-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 807104000, "concept": "us-gaap:CostOfRevenue"} | 2012-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 1144971000, "concept": "us-gaap:CostOfRevenue"} | 2012-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 1142653000, "concept": "us-gaap:CostOfRevenue"} | 2012-04-30 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 801413000, "concept": "us-gaap:CostOfRevenue"} | 2011-12-31 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 1074880000, "concept": "us-gaap:CostOfRevenue"} | 2011-04-30 | sec_edgar |
| cost_of_revenue | {"unit": "HKD", "value": 810187000, "concept": "us-gaap:CostOfRevenue"} | 2010-04-30 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 42324000, "concept": "us-gaap:AssetsCurrent"} | 2025-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 44171000, "concept": "us-gaap:AssetsCurrent"} | 2024-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 100572000, "concept": "us-gaap:AssetsCurrent"} | 2023-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 99200000, "concept": "us-gaap:AssetsCurrent"} | 2022-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 101863000, "concept": "us-gaap:AssetsCurrent"} | 2021-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 185147000, "concept": "us-gaap:AssetsCurrent"} | 2020-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 187284000, "concept": "us-gaap:AssetsCurrent"} | 2019-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 441665000, "concept": "us-gaap:AssetsCurrent"} | 2018-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 570002000, "concept": "us-gaap:AssetsCurrent"} | 2017-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 622741000, "concept": "us-gaap:AssetsCurrent"} | 2016-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 934518000, "concept": "us-gaap:AssetsCurrent"} | 2015-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 953314000, "concept": "us-gaap:AssetsCurrent"} | 2014-12-31 | sec_edgar |
| current_assets | {"unit": "HKD", "value": 753517000, "concept": "us-gaap:AssetsCurrent"} | 2013-12-31 | sec_edgar |
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| current_liabilities | {"unit": "HKD", "value": 538000, "concept": "us-gaap:LiabilitiesCurrent"} | 2024-12-31 | sec_edgar |
| current_liabilities | {"unit": "HKD", "value": 14153000, "concept": "us-gaap:LiabilitiesCurrent"} | 2023-12-31 | sec_edgar |
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| current_liabilities | {"unit": "HKD", "value": 11755000, "concept": "us-gaap:LiabilitiesCurrent"} | 2020-12-31 | sec_edgar |
| current_liabilities | {"unit": "HKD", "value": 10748000, "concept": "us-gaap:LiabilitiesCurrent"} | 2019-12-31 | sec_edgar |
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| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 12938128} | 2025-12-31 | sec_edgar |
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| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 12938128} | 2013-12-31 | sec_edgar |
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| dei:EntityPublicFloat | {"amount": 38994183, "currency": "USD"} | 2012-04-30 | sec_edgar |
| depreciation_amortization | {"unit": "HKD", "value": 7984000, "concept": "us-gaap:DepreciationDepletionAndAmortization | 2018-12-31 | sec_edgar |
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| dividends_paid | {"unit": "HKD", "value": 35321000, "concept": "us-gaap:PaymentsOfDividendsCommonStock"} | 2024-12-31 | sec_edgar |
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