Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock Repurchase plan	Common Stock	Additional Paid-in Capital Repurchase plan	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income, Net of Tax	Unearned ESOP Shares	Repurchase plan	Total
Beginning balance at Dec. 31, 2018		$ 45		$ 91,466	$ 90,854	$ (1,479)	$ (848)		$ 180,038
Beginning Balance (in shares) at Dec. 31, 2018		4,492,478
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					5,192				5,192
Dividends paid ($0.21 and $0.14 per share for 2020 and 2019, respectively)					(663)				(663)
Share-based compensation				262					262
Common stock repurchased			$ (285)					$ (285)
Common stock repurchased (in shares)	(6,036)
Stock options exercised				44					44
Stock options shares exercised (in shares)		2,600
Other comprehensive income, net of tax						1,043			1,043
ESOP shares allocated				255			66		321
Ending balance at Mar. 31, 2019		$ 45		91,742	95,383	(436)	(782)		185,952
Ending Balance (in shares) at Mar. 31, 2019		4,489,042
Beginning balance at Dec. 31, 2019		$ 44		89,268	110,715	788	(573)		200,242
Beginning Balance (in shares) at Dec. 31, 2019		4,459,041
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					5,167				5,167
Dividends paid ($0.21 and $0.14 per share for 2020 and 2019, respectively)					(925)				(925)
Share-based compensation				224					224
Common stock repurchased		$ (1)		(4,988)					(4,989)
Common stock repurchased (in shares)		(136,243)
Stock options exercised				(246)					(246)
Stock options shares exercised (in shares)		9,398
Other comprehensive income, net of tax						1,031			1,031
ESOP shares allocated				259			66		325
Ending balance at Mar. 31, 2020		$ 43		$ 84,517	$ 114,957	$ 1,819	$ (507)		$ 200,829
Ending Balance (in shares) at Mar. 31, 2020		4,332,196