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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Revenues:        
Revenues $ 7,514,068 $ 4,129,554 $ 23,011,082 $ 12,813,280
Cost of revenues 3,815,203 2,420,126 11,318,697 6,945,496
Gross Profit 3,698,865 1,709,428 11,692,385 5,867,784
Operating expenses        
Selling, general and administrative 2,904,135 2,039,755 7,610,424 5,899,235
Research and development 972,857 666,244 2,664,829 1,858,894
Total operating expenses 3,876,992 2,705,999 10,275,253 7,758,129
Income (loss) from operations (178,127) (996,571) 1,417,132 (1,890,345)
Other income 24,159 32,682 73,894 94,884
Income (loss) from operations before income taxes (153,968) (963,889) 1,491,026 (1,795,461)
Income tax expense (benefit) (73,749) (435,726) 2,793,590 (752,969)
Net loss $ (80,219) $ (528,163) $ (1,302,564) $ (1,042,492)
Net loss per common share - basic and diluted (in dollars per share) $ 0 $ (0.02) $ (0.04) $ (0.03)
Weighted average common shares outstanding:        
Basic and diluted (in shares) 32,306,207 31,861,916 32,314,038 31,820,632
Product [Member]        
Revenues:        
Revenues $ 6,583,865 $ 3,852,676 $ 21,045,148 $ 12,026,248
Service [Member]        
Revenues:        
Revenues $ 930,203 $ 276,878 $ 1,965,934 $ 787,032