CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Preferred Stock	Retained Earnings	Accumulated Other Comprehensive Income	Total
Beginning Balance at Dec. 31, 2013	$ 12,570		$ 60,229	$ (5,126)	$ 67,673
Balances (in shares) at Dec. 31, 2013	2,717,434
Increase (Decrease) in Stockholders' Equity
Common stock issued	$ 2				2
Common stock issued (in shares)	7,159
Stock compensation expense	$ 111				111
Common stock purchased and retired	$ (21)		(90)		(111)
Common stock purchased and retired (in shares)	(4,495)
Other comprehensive income (loss)				5,917	5,917
Net income			7,071		7,071
Dividends declared			(2,721)		(2,721)
Ending Balance at Dec. 31, 2014	$ 12,662		64,489	791	77,942
Balances (in shares) at Dec. 31, 2014	2,720,098
Increase (Decrease) in Stockholders' Equity
Assumption of Madison Financial Corporation preferred stock		$ 4,390			4,390
Assumption of Madison Financial Corporation preferred stock (in shares)		12,047
Redemption of Madison Financial Corporation preferred stock		$ (4,390)			(4,390)
Redemption of Madison Financial Corporation preferred stock (in shares)		(12,047)
Common stock issued	$ 2				2
Common stock issued (in shares)	6,719
Shares issued to acquire Madison Financial Corporation, net of issuance costs	$ 7,939				7,939
Shares issued to acquire Madison Financial Corporation, net of issuance costs (in shares)	263,361
Stock compensation expense	$ 133				133
Common stock purchased and retired	$ (6)		(25)		(31)
Common stock purchased and retired (in shares)	(973)
Other comprehensive income (loss)				(432)	(432)
Net income			6,832		6,832
Dividends declared			(2,972)		(2,972)
Ending Balance at Dec. 31, 2015	$ 20,730		68,324	359	89,413
Balances (in shares) at Dec. 31, 2015	2,989,205
Increase (Decrease) in Stockholders' Equity
Common stock issued	$ 49				49
Common stock issued (in shares)	6,341
Stock compensation expense	$ 153				153
Common stock purchased and retired	$ (165)		(503)		(668)
Common stock purchased and retired (in shares)	(22,314)
Other comprehensive income (loss)				(1,315)	(1,315)
Net income			8,569		8,569
Dividends declared			(3,229)		(3,229)
Ending Balance at Dec. 31, 2016	$ 20,767		$ 73,161	$ (956)	$ 92,972
Balances (in shares) at Dec. 31, 2016	2,973,232