Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Unearned ESOP Shares [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2015	$ 87,630	$ 79	$ 58,604	$ 47,124	$ (13,471)	$ (7,180)	$ 2,474
Beginning balance, Shares at Dec. 31, 2015		6,865,811
Net income	2,904			2,904
Restricted stock awards	1	$ 1
Restricted stock awards, shares		11,679
Net change in unrealized gain (loss) on securities available for sale, net of taxes	(1,926)						(1,926)
Cash dividend to common stockholders	(993)			(993)
Common stock repurchase	(1,876)				(1,876)
Common stock repurchase, shares		(160,248)
ESOP shares earned	553		(79)			632
Compensation expense, restricted stock awards	135		135
Ending balance at Dec. 31, 2016	86,428	$ 80	58,660	49,035	(15,347)	(6,548)	548
Ending balance, Shares at Dec. 31, 2016		6,717,242
Net income	3,301			3,301
Restricted stock awards, shares		12,753
Net change in unrealized gain (loss) on securities available for sale, net of taxes	(647)						(647)
Cash dividend to common stockholders	(1,174)			(1,174)
Common stock repurchase	(1,308)				(1,308)
Common stock repurchase, shares		(92,224)
ESOP shares earned	$ 706		59			647
ESOP Shares Earned, shares	600,234	600,234
Compensation expense, restricted stock awards	$ 106		106
Ending balance at Dec. 31, 2017	87,412	$ 80	58,825	51,162	(16,655)	(5,901)	(99)
Ending balance, Shares at Dec. 31, 2017		6,637,771
Net income	5,669			5,669
Restricted stock awards, shares		15,039
Net change in unrealized gain (loss) on securities available for sale, net of taxes	(1,460)						(1,460)
Cash dividend to common stockholders	(1,697)			(1,697)
Restricted stock awards forfeited	0	$ 0	0	0	0	0	0
Restricted stock awards forfeited, shares		(303)
Common stock repurchase	$ (51)				(51)
Common stock repurchase, shares	(296,380)	(3,620)
ESOP shares earned	$ 749		116			633
ESOP Shares Earned, shares	598,201	598,201
Compensation expense, restricted stock awards	$ 164		164
Ending balance at Dec. 31, 2018	$ 90,786	$ 80	$ 59,105	$ 55,134	$ (16,706)	$ (5,268)	$ (1,559)
Ending balance, Shares at Dec. 31, 2018		6,648,887