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v3.6.0.2

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues: |  |  |
Equipment sales | $ 46,949 | $ 60,099 | $ 12,044
Chemicals | 3,025 | 888 | 391
Consulting services and other | 648 | 1,752 | 4,488
Total revenues | 50,622 | 62,739 | 16,923
Operating expenses: |  |  |
Equipment sales cost of revenue, exclusive of depreciation and amortization | 37,741 | 45,433 | 9,277
Chemicals cost of revenue, exclusive of depreciation and amortization | 1,700 | 601 | 140
Consulting services and other cost of revenue, exclusive of depreciation and amortization | 376 | 1,518 | 2,203
Payroll and benefits | 12,390 | 23,589 | 20,767
Rent and occupancy | 2,168 | 3,309 | 2,468
Legal and professional fees | 8,293 | 16,604 | 14,430
General and administrative | 3,721 | 6,104 | 6,066
Research and development, net | (648) | 5,362 | 1,521
Depreciation and amortization | 979 | 2,019 | 1,865
Total operating expenses | 66,720 | 104,539 | 58,737
Operating loss | (16,098) | (41,800) | (41,814)
Other income (expense): |  |  |
Earnings from equity method investments | 45,584 | 8,921 | 42,712
Royalties, related party | 6,125 | 10,642 | 6,410
Interest income | 268 | 24 | 74
Interest expense | (5,066) | (8,402) | (5,725)
Litigation settlement and royalty indemnity expense, net | 3,464 | 0 | 0
Other | 2,463 | 494 | 26
Total other income | 52,838 | 11,679 | 43,497
Income (loss) before income tax expense | 36,740 | (30,121) | 1,683
Income tax (benefit) expense | (60,938) | 20 | 296
Net income (loss) | $ 97,678 | $ (30,141) | $ 1,387
Earnings (loss) per common share: |  |  |
Basic (in dollars per share) | $ 4.40 | $ (1.37) | $ 0.06
Diluted (in dollars per share) | $ 4.34 | $ (1.37) | $ 0.06
Weighted-average number of common shares outstanding: |  |  |
Basic (in shares) | 21,931 | 21,773 | 21,554
Diluted (in shares) | 22,234 | 21,773 | 22,079

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