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Bank Financing Arrangements (Details Narrative) - USD ($)
 12 Months Ended
Mar. 20, 2017
Dec. 31, 2016
Dec. 31, 2015
Remaining borrowing capacity   $ 1,612,000  
Domestic Line of Credit      
Aggregate maximum advance amount $ 2,000,000    
Borrowing capacity description 70% of qualified receivables    
Debt reference rate Bank's Prime Rate    
Minimum interest rate on debt (as a percent) 3.25%    
Basis point added to reference rate of debt 1.50%    
Monthly collateral handling fee 0.10%    
Interest expense   $ 3,000 $ 38,494
Line of credit expiration date Feb. 27, 2019    
Foreign Line of Credit      
Aggregate maximum advance amount $ 500,000    
Borrowing capacity description 70% of qualified receivables    
Debt reference rate Bank's Prime Rate    
Minimum interest rate on debt (as a percent) 3.25%    
Basis point added to reference rate of debt 1.50%    
Monthly collateral handling fee 0.10%    
Line of credit expiration date Feb. 27, 2018