Unaudited Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital.	Retained Earnings.	Total
Balance at Dec. 31, 2019	$ 410	$ 154,957	$ 14,716	$ 170,083
Stock-based compensation	17	906		923
Net income			1,962	1,962
Balance at Mar. 31, 2020	427	155,863	16,678	172,968
Balance at Dec. 31, 2020	427	158,859	9,809	169,095
Stock-based compensation	15	1,040		1,055
Net income			4,143	4,143
Balance at Mar. 31, 2021	$ 442	$ 159,899	$ 13,952	$ 174,293