CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Deferred Compensation Obligation Under Rabbi Trust	Retained Earnings	Accumulated Other Comprehensive Income	Stock Held by Rabbi Trust	Treasury Stock
Beginning balance at Dec. 31, 2017	$ 94,193	$ 65,274	$ 1,399	$ 27,532	$ 1,387	$ (1,399)	$ 0
Beginning balance (in shares) at Dec. 31, 2017		6,040,564
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,308			1,308
Other comprehensive income (loss)	(783)				(783)
Shares issued in merger	51,883	$ 51,883
Shares issued in merger (in shares)		1,873,028
Funding of Supplemental Director Retirement Plan			46			(46)
Restricted stock granted (in shares)		20,169
Restricted stock forfeited (in shares)		(4,148)
Compensation expense related to stock option and restricted stock grants	165	$ 165
Dividends declared on common stock	(474)			(474)
Ending balance at Mar. 31, 2018	146,292	$ 117,322	1,445	28,366	604	(1,445)	0
Ending balance (in shares) at Mar. 31, 2018		7,929,613
Beginning balance at Dec. 31, 2018	$ 185,444	$ 150,419	1,647	35,192	(167)	(1,647)	0
Beginning balance (in shares) at Dec. 31, 2018	9,532,943	9,532,943
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 5,823			5,823
Other comprehensive income (loss)	876				876
Treasury shares purchased	(1,926)						(1,926)
Treasury shares purchased (in shares)		(88,091)
Funding of Supplemental Director Retirement Plan			42			(42)
Restricted stock granted (in shares)		41,832
Restricted stock forfeited (in shares)		(15,954)
Compensation expense related to stock option and restricted stock grants	190	$ 190
Dividends declared on common stock	(712)			(712)
Ending balance at Mar. 31, 2019	$ 189,695	$ 150,609	$ 1,689	$ 40,303	$ 709	$ (1,689)	$ (1,926)
Ending balance (in shares) at Mar. 31, 2019	9,470,730	9,470,730