2.4.0.8004415 - Disclosure - Employee Benefits (Details 1)truefalsefalse1false USDfalsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0001210227duration2013-01-01T00:00:002013-06-30T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$1false 4bncn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionSharesbncn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse328821328821falsefalsefalsexbrli:sharesItemTypesharesNo authoritative reference available.No definition available.false1Stock Options Assumed In Acquisition2false 4bncn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionWeightedAverageExercisePricebncn_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse11.0411.04USD$falsetruefalsexbrli:monetaryItemTypemonetaryNo authoritative reference available.No definition available.false2Weighted Average Exercise Price of Stock Options Assumed In Acquisition3false 4bncn_Sharebasedcompensationarrangementbysharebasedpaymentawardoptionsexercisableweightedaverageremainingcontractualterm2bncn_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse004 years 4 months 14 daysfalsefalsefalsexbrli:durationItemTypenaNo authoritative reference available.No definition available.false0Weighted Average Remaining Life of Options Assumed in Business Combination4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseAS_OF_Jun30_2013_bncn_StockoptionsassumedAxis_KeysourceMemberhttp://www.sec.gov/CIK0001210227instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseKeySource [Member]bncn_StockoptionsassumedAxisxbrldihttp://xbrl.org/2006/xbrldibncn_KeysourceMemberbncn_StockoptionsassumedAxisexplicitMemberSharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0nanafalse0KeySource [Member]5false 4us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3560735607falsefalsefalsexbrli:sharesItemTypesharesThe difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 false1Rights Available For Issuance Under Plan6false 4bncn_ShareBasedCompensationArrangementByShareBasedPaymentAwardrightIssuedbncn_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse308821308821falsefalsefalsexbrli:sharesItemTypesharesNo authoritative reference available.No definition available.false1Grants of Rights IssuedfalseEmployee Benefits (Details 1) (USD $)NoRoundingNoRoundingUnKnownUnKnowntruefalsefalseSheethttp://www.test2012TX.com/role/DisclosureEmployeeBenefitsDetails116