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Geographic Segment Data (Details) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting Information [Line Items]    
Sales to outside customers $ 64,268,367 $ 59,364,701
Total Assets 43,913,739 41,804,969
United States [Member]    
Segment Reporting Information [Line Items]    
Sales to outside customers 51,792,000 46,520,000
Total Assets 33,108,000 30,772,000
United Kingdom [Member]    
Segment Reporting Information [Line Items]    
Sales to outside customers 2,427,000 2,207,000
Total Assets 1,324,000 1,791,000
Europe [Member]    
Segment Reporting Information [Line Items]    
Sales to outside customers 2,590,000 1,530,000
Total Assets 2,418,000 1,562,000
Mexico [Member]    
Segment Reporting Information [Line Items]    
Sales to outside customers 7,459,000 9,108,000
Total Assets $ 7,064,000 $ 7,680,000