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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2014 | Oct. 31, 2013
Operating revenue: |  |  |  |
Personalized oncology solutions | $ 452 csbr_PersonalizedOncologySolutions | $ 623 csbr_PersonalizedOncologySolutions | $ 792 csbr_PersonalizedOncologySolutions | $ 1,245 csbr_PersonalizedOncologySolutions
Translational oncology solutions | 1,430 csbr_TranslationalOncologySolutions | 1,760 csbr_TranslationalOncologySolutions | 3,001 csbr_TranslationalOncologySolutions | 4,158 csbr_TranslationalOncologySolutions
Total operating revenue | 1,882 us-gaap_SalesRevenueServicesNet | 2,383 us-gaap_SalesRevenueServicesNet | 3,793 us-gaap_SalesRevenueServicesNet | 5,403 us-gaap_SalesRevenueServicesNet
Costs and operating expenses: |  |  |  |
Cost of personalized oncology solutions | 759 csbr_CostOfPersonalizedOncologySolutions | 732 csbr_CostOfPersonalizedOncologySolutions | 1,516 csbr_CostOfPersonalizedOncologySolutions | 1,525 csbr_CostOfPersonalizedOncologySolutions
Cost of translational oncology solutions | 960 csbr_CostOfTranslationalOncologySolutions | 698 csbr_CostOfTranslationalOncologySolutions | 1,924 csbr_CostOfTranslationalOncologySolutions | 1,576 csbr_CostOfTranslationalOncologySolutions
Research and development | 1,249 us-gaap_ResearchAndDevelopmentExpense | 677 us-gaap_ResearchAndDevelopmentExpense | 2,663 us-gaap_ResearchAndDevelopmentExpense | 1,079 us-gaap_ResearchAndDevelopmentExpense
Sales and marketing | 1,203 us-gaap_SellingAndMarketingExpense | 698 us-gaap_SellingAndMarketingExpense | 2,246 us-gaap_SellingAndMarketingExpense | 1,340 us-gaap_SellingAndMarketingExpense
General and administrative | 1,377 us-gaap_GeneralAndAdministrativeExpense | 1,279 us-gaap_GeneralAndAdministrativeExpense | 2,831 us-gaap_GeneralAndAdministrativeExpense | 2,355 us-gaap_GeneralAndAdministrativeExpense
Total costs and operating expenses | 5,548 us-gaap_OperatingExpenses | 4,084 us-gaap_OperatingExpenses | 11,180 us-gaap_OperatingExpenses | 7,875 us-gaap_OperatingExpenses
Loss from operations | (3,666)us-gaap_OperatingIncomeLoss | (1,701)us-gaap_OperatingIncomeLoss | (7,387)us-gaap_OperatingIncomeLoss | (2,472)us-gaap_OperatingIncomeLoss
Other income (expense): |  |  |  |
Change in fair value of warrant liability | 625 us-gaap_GainLossOnDerivativeInstrumentsNetPretax | (585)us-gaap_GainLossOnDerivativeInstrumentsNetPretax | 780 us-gaap_GainLossOnDerivativeInstrumentsNetPretax | (2,048)us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Other (expense) | (27)us-gaap_OtherNonoperatingIncomeExpense | (29)us-gaap_OtherNonoperatingIncomeExpense | (62)us-gaap_OtherNonoperatingIncomeExpense | (30)us-gaap_OtherNonoperatingIncomeExpense
Total other income (expense) | 598 us-gaap_NonoperatingIncomeExpense | (614)us-gaap_NonoperatingIncomeExpense | 718 us-gaap_NonoperatingIncomeExpense | (2,078)us-gaap_NonoperatingIncomeExpense
Loss before provision for income taxes | (3,068)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (2,315)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (6,669)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (4,550)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Provision for income taxes | 10 us-gaap_IncomeTaxExpenseBenefit | 3 us-gaap_IncomeTaxExpenseBenefit | 15 us-gaap_IncomeTaxExpenseBenefit | 6 us-gaap_IncomeTaxExpenseBenefit
Net loss | $ (3,078)us-gaap_NetIncomeLoss | $ (2,318)us-gaap_NetIncomeLoss | $ (6,684)us-gaap_NetIncomeLoss | $ (4,556)us-gaap_NetIncomeLoss
Net loss per common share outstanding, including redeemable common stock, basic (in dollars per share) | $ (0.05)us-gaap_EarningsPerShareBasic | $ (0.03)us-gaap_EarningsPerShareBasic | $ (0.10)us-gaap_EarningsPerShareBasic | $ (0.07)us-gaap_EarningsPerShareBasic
Net loss per common share outstanding, including redeemable common stock, diluted (in dollars per share) | $ (0.05)us-gaap_EarningsPerShareDiluted | $ (0.03)us-gaap_EarningsPerShareDiluted | $ (0.11)us-gaap_EarningsPerShareDiluted | $ (0.07)us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding, including redeemable common stock, basic (in shares) | 66,887,331 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 66,863,147 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 66,886,234 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 66,857,630 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted average common shares outstanding, including redeemable common stock, diluted (in shares) | 67,855,325 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 66,863,147 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 67,854,228 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 66,857,630 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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