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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
3 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Income Statement [Abstract]    
Sales, net $ 4,449,122 $ 7,331,945
Cost of sales 2,696,469 3,880,526
Gross profit 1,752,653 3,451,419
Operating expenses:    
Sales and marketing 596,162 544,722
Research and development 664,190 464,072
General and administrative 2,383,146 1,988,559
Operating expenses 3,643,498 2,997,353
Operating income (loss) (1,890,845) 454,066
Nonoperating income (expense):    
Interest income 2 794
Interest expense (37,912) (188,495)
Nonoperating expenses (37,910) (187,701)
Income (loss) before income taxes (1,928,755) 266,365
Provision for income taxes 0 (10,740)
Net income (loss) $ (1,928,755) $ 255,625
Basic earnings (loss) per common share $ (0.05) $ 0.01
Diluted earnings (loss) per common share $ (0.05) $ 0.01
Basic weighted average common shares outstanding 38,030,688 36,414,041
Diluted weighted average common shares outstanding 38,030,688 37,472,579