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v2.4.1.9

Provision for Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified | Apr. 30, 2014 | Apr. 30, 2013
--- | --- | ---
Accrued liabilities | $ 38us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | $ 89us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Depreciation and amortization | 9csbr_DeferredTaxAssetsDeferredExpenseDepreciationAndAmortization | 51csbr_DeferredTaxAssetsDeferredExpenseDepreciationAndAmortization
State taxes | 1us-gaap_DeferredTaxAssetsStateTaxes | 7us-gaap_DeferredTaxAssetsStateTaxes
Stock-based compensation expense | 4,511us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 3,582us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Capitalized research and development costs | 556us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment | 688us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment
Foreign net operating loss carry-forward | 244us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign | 386us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign
Net operating loss carry-forward | 5,608us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 4,144us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Total deferred tax assets | 10,968us-gaap_DeferredTaxAssetsGross | 8,948us-gaap_DeferredTaxAssetsGross
Less: Valuation allowance | (10,968)us-gaap_DeferredTaxAssetsValuationAllowance | (8,948)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred tax asset | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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