|
Investments (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
|
| Investments [Line Items] | ||||
| Total operating expenses | $ 300us-gaap_OperatingExpenses | $ 708us-gaap_OperatingExpenses | ||
| Other income | (734)us-gaap_OtherNonoperatingIncomeExpense | (1,678)us-gaap_OtherNonoperatingIncomeExpense | ||
| Provision (benefit) for income taxes | 0us-gaap_IncomeTaxExpenseBenefit | 0us-gaap_IncomeTaxExpenseBenefit | ||
| Net loss | (989)us-gaap_NetIncomeLoss | (2,343)us-gaap_NetIncomeLoss | ||
| Qualstar [Member] | ||||
| Investments [Line Items] | ||||
| Net revenues | 10,941us-gaap_SalesRevenueNet / dei_LegalEntityAxis = bkfg_QualstarMember |
12,642us-gaap_SalesRevenueNet / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Cost of goods sold | 8,350us-gaap_CostOfGoodsSold / dei_LegalEntityAxis = bkfg_QualstarMember |
9,187us-gaap_CostOfGoodsSold / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Gross profit | 2,591us-gaap_GrossProfit / dei_LegalEntityAxis = bkfg_QualstarMember |
3,455us-gaap_GrossProfit / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Total operating expenses | 8,239us-gaap_OperatingExpenses / dei_LegalEntityAxis = bkfg_QualstarMember |
(13,866)us-gaap_OperatingExpenses / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Loss from operations | (5,648)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = bkfg_QualstarMember |
(10,411)us-gaap_OperatingIncomeLoss / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Other income | 24us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = bkfg_QualstarMember |
48us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Loss before income taxes | (5,624)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = bkfg_QualstarMember |
(10,363)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| Provision (benefit) for income taxes | 0us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = bkfg_QualstarMember |
|||
| Net loss | $ (5,624)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = bkfg_QualstarMember |
$ (10,363)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = bkfg_QualstarMember |
||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Total costs related to goods produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|