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Investments (Details 1) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Jun. 30, 2014
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Jun. 30, 2013
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| Investments [Line Items] | |||||
| Total assets | $ 5,915us-gaap_Assets | $ 6,885us-gaap_Assets | |||
| Total liabilities | 52us-gaap_Liabilities | 33us-gaap_Liabilities | |||
| Total shareholders’ equity | 5,863us-gaap_StockholdersEquity | 6,852us-gaap_StockholdersEquity | 9,180us-gaap_StockholdersEquity | ||
| Qualstar [Member] | |||||
| Investments [Line Items] | |||||
| Current assets | 12,055us-gaap_AssetsCurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
14,046us-gaap_AssetsCurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Noncurrent assets | 730us-gaap_AssetsNoncurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
6,161us-gaap_AssetsNoncurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Total assets | 12,785us-gaap_Assets / dei_LegalEntityAxis = bkfg_QualstarMember |
20,207us-gaap_Assets / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Current liabilities | 3,645us-gaap_LiabilitiesCurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
5,445us-gaap_LiabilitiesCurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Other long-term liabilities | 17us-gaap_OtherLiabilitiesNoncurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
17us-gaap_OtherLiabilitiesNoncurrent / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Total liabilities | 3,662us-gaap_Liabilities / dei_LegalEntityAxis = bkfg_QualstarMember |
5,462us-gaap_Liabilities / dei_LegalEntityAxis = bkfg_QualstarMember |
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| Total shareholders’ equity | $ 9,123us-gaap_StockholdersEquity / dei_LegalEntityAxis = bkfg_QualstarMember |
$ 14,745us-gaap_StockholdersEquity / dei_LegalEntityAxis = bkfg_QualstarMember |
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- Details
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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