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Bank Financing Arrangements (Details Narrative) - USD ($)
 12 Months Ended
Jan. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Accrued interest payable   $ 14,466 $ 13,546
Domestic Line of Credit      
Aggregate maximum advance amount $ 2,000,000    
Borrowing capacity description 80% of qualified receivables    
Debt reference rate U.S. Prime Rate    
Basis point added to reference rate of debt 0.75%    
Line of credit expiration date Jan. 31, 2020    
Foreign Line of Credit      
Aggregate maximum advance amount $ 500,000    
Borrowing capacity description 80% of qualified receivables    
Debt reference rate U.S. Prime Rate    
Basis point added to reference rate of debt 0.75%    
Line of credit expiration date Jan. 31, 2020    
Term Loan for Stock Repurchase      
Aggregate maximum advance amount $ 4,000,000    
Borrowing capacity description Payable over 48 months    
Debt reference rate U.S. Prime Rate    
Basis point added to reference rate of debt 1.75%    
Amount outstanding   333,333  
Amount repaid   500,000  
Interest expense   44,541 94,594
Line of Credit Facilities      
Amount outstanding   1,412,449  
Amount borrowed   17,423,000  
Amount repaid   17,327,329  
Interest expense   55,571 $ 37,201
Remaining borrowing capacity   $ 426,547