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Bank Financing Arrangements (Details Narrative) - USD ($)
 3 Months Ended 6 Months Ended
Jan. 31, 2018
Jun. 30, 2018
Jun. 30, 2018
Mar. 01, 2018
Accrued interest payable   $ 8,572 $ 8,572  
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      
Amount outstanding   1,259,082 1,259,082  
Amount borrowed   4,704,131 4,704,131  
Amount repaid   3,445,049 3,445,049  
Interest expense   12,716 12,716  
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      
Amount outstanding   275,980 275,980  
Amount borrowed   1,012,222 1,012,222  
Amount repaid   736,242 736,242  
Interest expense   1,681 1,681  
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   1,000,000 1,000,000 $ 4,000,000
Amount borrowed     4,000,000  
Amount repaid     3,000,000  
Interest expense   $ 34,924 $ 56,730