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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2017 | Apr. 30, 2016
Operating revenue: |  |
Personalized oncology solutions | $ 1,720,000 | $ 1,972,000
Translational oncology solutions | 13,691,000 | 9,210,000
Total operating revenue | 15,411,000 | 11,182,000
Costs and operating expenses: |  |
Cost of personalized oncology solutions | 1,433,000 | 2,102,000
Cost of translational oncology solutions | 8,270,000 | 6,584,000
Research and development | 4,293,000 | 4,194,000
Sales and marketing | 3,261,000 | 3,445,000
General and administrative | 4,963,000 | 5,173,000
Total costs and operating expenses | 22,220,000 | 21,498,000
Loss from operations | (6,809,000) | (10,316,000)
Other expense: |  |
Other expense | (56,000) | (38,000)
Total other expense | (56,000) | (38,000)
Net loss before income tax expense | (6,865,000) | (10,354,000)
Provision for income tax | 19,000 | 92,000
Net loss | $ (6,883,882) | $ (10,445,537)
Net loss per common share outstanding basic and diluted (in dollars per share) | $ (0.64) | $ (1.20)
Weighted average common shares outstanding basic and diluted (in shares) | 10,684,395 | 8,695,199

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