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Geographic Segment Data (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Segment Reporting Information [Line Items]          
Sales to outside customers $ 13,158,876 $ 13,034,306 $ 28,079,207 $ 26,379,072  
Total Assets 41,257,305   41,257,305   39,071,500
United States [Member]
          
Segment Reporting Information [Line Items]          
Sales to outside customers 9,408,000 9,789,000 20,178,000 19,660,000  
Total Assets 29,543,000   29,543,000   28,758,000
United Kingdom [Member]
          
Segment Reporting Information [Line Items]          
Sales to outside customers 539,000 438,000 1,465,000 1,084,000  
Total Assets 1,610,000   1,610,000   1,025,000
Europe [Member]
          
Segment Reporting Information [Line Items]          
Sales to outside customers 408,000 185,000 802,000 427,000  
Total Assets 1,424,000   1,424,000   1,145,000
Mexico [Member]
          
Segment Reporting Information [Line Items]          
Sales to outside customers 2,804,000 2,622,000 5,634,000 5,208,000  
Total Assets $ 8,680,000   $ 8,680,000   $ 8,144,000