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Bank Financing Arrangements (Tables)
3 Months Ended
Mar. 31, 2019
Debt Disclosure [Abstract]  
Term loan and bank credit line balances

Amounts outstanding under the term loan and bank credit facilities at March 31, 2019 are as follows:

 

   March 31, 2019
Long-term portion of term loan   208,333 
Current-portion of term loan   500,000 
Term loan  $708,333

 

 

   March 31, 2019
Lines of credit -domestic line   1,458,140 
Lines of credit -EXIM line   338,144 
Total lines of credit  $1,796,284