Stock-Based Compensation Schedule of Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Payment Arrangement [Abstract]
Fair value of options granted	$ 1,891	$ 71	$ 982
Per share weighted average fair value of options granted (dollars per share)	$ 2.87	$ 1.83	$ 1.30
Total intrinsic value of stock options exercised	$ 707	$ 55	$ 0