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Geographic Segment Data (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]    
Sales to outside customers $ 56,059,000 $ 49,543,000
Total Assets 39,072,000 37,747,000
United States [Member]
    
Segment Reporting Information [Line Items]    
Sales to outside customers 41,956,000 35,527,000
Total Assets 28,758,000 27,708,000
United Kingdom [Member]
    
Segment Reporting Information [Line Items]    
Sales to outside customers 2,032,000 2,427,000
Total Assets 1,025,000 1,133,000
Europe [Member]
    
Segment Reporting Information [Line Items]    
Sales to outside customers 1,001,000 817,000
Total Assets 1,145,000 1,057,000
Mexico [Member]
    
Segment Reporting Information [Line Items]    
Sales to outside customers 11,070,000 10,772,000
Total Assets $ 8,144,000 $ 7,849,000