Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Treasury Shares [Member]	Retained Earnings [Member]
Beginning, Balance at Dec. 31, 2019	$ 200,895	$ 183,687	$ (4,882)	$ 22,090
Net income	50			50
Purchase of treasury stock	(2,435)		(2,435)
ESOP Contribution	4,831	2,374	2,457
Stock-based compensation	1,582	1,582
Ending, Balance at Mar. 31, 2020	204,923	187,643	(4,860)	22,140
Beginning, Balance at Dec. 31, 2020	200,857	190,793	(4,934)	14,998
Net income	2,545			2,545
401(k) plan contribution	1,944	1,319	625
Stock-based compensation	1,200	1,200
Ending, Balance at Mar. 31, 2021	$ 206,546	$ 193,312	$ (4,309)	$ 17,543