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Stockholder Rights Plan - Additional Information (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Portion of preferred share purchase right entitled to holder | 0.0001 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Purchase price of Preferred Stock as per plan | $ 150.00 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Number of votes entitled to common stock | One
Price worth of surviving company common stock | 300.00 bdc_ClassOfWarrantOrRightValueOfStockCommonStockAcquiredUponExercise
Percentage common stock to acquired to exercise stock rights | 20.00%bdc_PercentageCommonStockToAcquiredToExerciseStockRights
Redemption price of stock holder rights plan | $ 0.01 bdc_RedemptionPriceOfStockHolderRightsPlan
Percentage of beneficial ownership | 20.00%bdc_PercentageOfBeneficialOwnership

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- Definition Percentage common stock to acquired to exercise stock rights. + References No definition available. + Details
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- Definition Percentage of beneficial ownership. + References No definition available. + Details
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- Definition Redemption price of Stock holder rights plan. + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 + Details
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- Definition Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 + Details
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- Details
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