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Significant Accounting Policies (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Allowance for doubtful accounts receivable $ 926,000 $ 882,000  
Advertising expense 1,047,000 1,062,000 $ 848,000
Research and development expense 788,000 876,000 904,000
Shipping costs $ 2,339,000 $ 2,429,000 $ 2,280,000
Sales Revenue [Member]      
Concentration risk percentage 88.00% 88.00% 88.00%
One Customer [Member] | Sales Revenue [Member]      
Concentration risk percentage 13.00% 16.00% 15.00%
One Customer [Member] | Accounts Receivable [Member]      
Concentration risk percentage 20.00% 25.00%  
No Customer [Member]      
Concentration risk percentage 10.00%    
Minimum [Member]      
Defense costs per claim $ 25,000    
Maximum [Member]      
Defense costs per claim $ 1,000,000