Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Consolidated Statements of Operations and Comprehensive Income (Loss) [Abstract]    
Net sales $ 21,495,184 $ 24,070,292
Cost of sales 18,332,346 19,432,241
Gross profit 3,162,838 4,638,051
Selling and marketing 1,086,586 1,015,279
General and administrative 2,355,484 2,322,795
Research and development 241,100 408,867
Total operating expenses 3,683,170 3,746,941
Income (loss) from continuing operations (520,332) 891,110
Other income (expense):    
Interest expense (260,300) (274,138)
Other income (expense), net (10,212) 46,184
Total other expense, net (270,512) (227,954)
Income (loss) from continuing operations before income taxes (790,844) 663,156
Income tax provision 932 2,168
Net income (loss) from continuing operations (791,776) 660,988
Discontinued Operations:    
Income (loss) from discontinued operations, net of tax provision of $0 for the years ended December 31, 2015 and 2014 (includes $42,502 accumulated other comprehensive income reclassification in 2015) 362,610 (1,779)
Net income (loss) (429,166) 659,209
Other comprehensive income:    
Reclassification of gains from foreign currency translation (42,502)  
Comprehensive income (loss) $ (471,668) $ 659,209
Earnings (loss) per share - basic    
Continuing operations $ (0.28) $ 0.24
Discontinued operations 0.13 0.00
Earnings (loss) per share - basic (0.15) 0.24
Earnings (loss) per share - diluted    
Continuing operations (0.28) 0.23
Discontinued operations 0.13 0.00
Earnings (loss) per share - diluted $ (0.15) $ 0.23
Weighted average common shares outstanding - basic 2,784,757 2,742,080
Weighted average common shares outstanding - diluted 2,784,757 2,863,098