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Condensed Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Revenues:        
Equipment sales $ 12,088 $ 7,496 $ 47,439 $ 9,495
Consulting services 665 1,499 1,349 3,521
Chemicals and other 132 77 749 214
Total revenues 12,885 9,072 49,537 13,230
Operating expenses:        
Equipment sales cost of revenue, exclusive of depreciation and amortization 9,914 5,737 38,662 6,940
Consulting services cost of revenue, exclusive of depreciation and amortization 591 704 1,282 1,669
Chemical and other cost of revenue, exclusive of depreciation and amortization 105 71 383 108
Payroll and benefits 4,445 6,438 19,102 15,294
Rent and occupancy 596 667 1,828 1,784
Legal and professional fees 3,424 3,560 11,545 7,487
General and administrative 1,249 1,428 4,635 3,981
Research and development, net 2,022 277 5,133 871
Depreciation and amortization 528 469 1,632 1,364
Total operating expenses 22,874 19,351 84,202 39,498
Operating loss (9,989) (10,279) (34,665) (26,268)
Other income (expense):        
Earnings (loss) from equity method investments (41) 5,603 5,133 22,019
Royalties, related party 3,273 2,275 7,767 4,255
Interest income 2 14 20 61
Interest expense (1,778) (1,190) (5,347) (3,202)
Other (77) (9) 10 0
Total other income (expense), net 1,379 6,693 7,583 23,133
Loss before income tax expense (8,610) (3,586) (27,082) (3,135)
Income tax expense 44 113 151 155
Net loss $ (8,654) $ (3,699) $ (27,233) $ (3,290)
Loss per common share (Note 1):        
Basic (in dollars per share) $ (0.40) $ (0.17) $ (1.24) $ (0.15)
Diluted (in dollars per share) $ (0.40) $ (0.17) $ (1.24) $ (0.15)
Weighted-average number of common shares outstanding:        
Basic (in shares) 21,687 21,536 21,757 21,522
Diluted (in shares) 21,687 21,536 21,757 21,522