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Debt
3 Months Ended
Mar. 31, 2017
Debt [Abstract]  
Debt
(6) Debt:
The Company maintains a revolving line of credit with a $40,000 limit and an expiration date of September 23, 2018.  Interest on this line of credit is referenced to LIBOR and can be fixed for periods of up to one year at the Company's option.  Outstanding drawings on this line of credit were $20,000 as of both March 31, 2017 and December 31, 2016.  At March 31, 2017, the effective interest rate was 2.08%.  The Company has $20,000 remaining unused under the line of credit at March 31, 2017.  The current outstanding borrowings were used for general corporate purposes.