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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Net revenue    
Total net revenue $ 3,520 $ 4,208
Cost of net revenue 1,354 1,601
Gross profit 2,166 2,607
Operating expenses    
Research and development 1,153 1,051
Selling, general and administrative 972 989
Total operating expenses 2,125 2,040
Income from operations 41 567
Interest expense (54) (221)
Other income, net 23 3
Income before income taxes 10 349
Income tax provision   1
Net and comprehensive income $ 10 $ 348
Net income per share    
Basic $ 0.00 $ 0.04
Diluted $ 0.00 $ 0.04
Shares used in computing net income per share    
Basic 43,068 8,130
Diluted 45,412 8,347
Product [Member]    
Net revenue    
Total net revenue $ 3,386 $ 3,704
Royalty And Other [Member]    
Net revenue    
Total net revenue $ 134 $ 504