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8. Income taxes (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Taxes Tables    
Computed "expected" benefit $ (773,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ (3,490)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Effect of state income taxes, net of federal benefit (136,000)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 0us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Effect of change in tax rates (280,760)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate 0us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Pre-acquisition losses 640,000bcke_IncomeTaxReconciliationPreacquisitionLosses 0bcke_IncomeTaxReconciliationPreacquisitionLosses
Increase in valuation allowance 549,760us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 3,490us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Total $ 0us-gaap_IncomeTaxExpenseBenefit $ 0us-gaap_IncomeTaxExpenseBenefit