Line of Credit	12 Months Ended
Dec. 31, 2019
Line of Credit Facility [Abstract]
Line of Credit	9. Line of Credit The Company has a $40 million unsecured revolving line of credit with a bank. This facility is renewable annually and terminates on September 30, 2020. Borrowings under this facility bear interest at the one-month LIBOR rate (1.754% at December 31, 2019) plus 150 basis points. The Company is charged one-quarter of a percent (0.25%) per year on the unused portion. At December 31, 2019, the Company was in compliance with the terms and covenants of the credit facility, which remains unused. At December 31, 2018, the Company was in compliance with the terms and covenants of a previous credit facility.

The entire disclosure for short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.

No definition available.

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