Line of Credit	3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]
Line of Credit	Line of Credit The Company has a $10.0 million revolving line of credit with a domestic bank. At both March 31, 2017 and December 31, 2016, there were no borrowings under the line. As of March 31, 2017, the Company had letters of credit outstanding of approximately $2.7 million under the facility and available borrowing of approximately $7.3 million. The line is secured by substantially all of the assets of the Company, and bears interest at varying rates (currently LIBOR plus 1.5% or Prime less 0.75%). The line of credit matures on July 31, 2017, and requires monthly payments of interest only. The Company’s agreement with the bank requires it to comply with certain financial and other covenants including maintenance of a maximum leverage ratio and minimum fixed charge coverage ratio. The leverage ratio (ratio of total liabilities to tangible net worth) can be no greater than 1:1, and the fixed charge coverage ratio can be no less than 1.25:1, based upon a trailing twelve-month period. At March 31, 2017, the Company’s leverage ratio was 1.14:1 and its fixed charge coverage ratio was 2.45:1. The Company's violation of the leverage ratio requirement was waived as of March 31, 2017.

Line of Credit

3 Months Ended

Mar. 31, 2017

The Company has a $10.0 million revolving line of credit with a domestic bank. At both March 31, 2017 and December 31, 2016, there were no borrowings under the line. As of March 31, 2017, the Company had letters of credit outstanding of approximately $2.7 million under the facility and available borrowing of approximately $7.3 million. The line is secured by substantially all of the assets of the Company, and bears interest at varying rates (currently LIBOR plus 1.5% or Prime less 0.75%). The line of credit matures on July 31, 2017, and requires monthly payments of interest only. The Company’s agreement with the bank requires it to comply with certain financial and other covenants including maintenance of a maximum leverage ratio and minimum fixed charge coverage ratio. The leverage ratio (ratio of total liabilities to tangible net worth) can be no greater than 1:1, and the fixed charge coverage ratio can be no less than 1.25:1, based upon a trailing twelve-month period. At March 31, 2017, the Company’s leverage ratio was 1.14:1 and its fixed charge coverage ratio was 2.45:1. The Company's violation of the leverage ratio requirement was waived as of March 31, 2017.