Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital.	Retained Earnings	Total
Balance at Dec. 31, 2018	$ 401	$ 150,926	$ (10,218)	$ 141,109
Stock-based compensation	7	887		894
Net income			6,883	6,883
Balance at Mar. 31, 2019	408	151,813	(3,335)	148,886
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