CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Beginning Balance at Dec. 31, 2017	$ 20,931	$ 80,395	$ (997)	$ 100,329
Balances (in shares) at Dec. 31, 2017	5,943,044
Increase (Decrease) in Stockholders' Equity
Common stock issued - stock grants	$ 64			64
Common stock issued - stock grants (in shares)	13,836
Stock compensation expense	$ 45			45
Other comprehensive loss			(3,397)	(3,397)
Net income		3,148		3,148
Dividends declared		(923)		(923)
Ending Balance at Mar. 31, 2018	$ 21,040	82,620	(4,394)	99,266
Balances (in shares) at Mar. 31, 2018	5,956,880
Beginning Balance at Dec. 31, 2017	$ 20,931	80,395	(997)	100,329
Balances (in shares) at Dec. 31, 2017	5,943,044
Increase (Decrease) in Stockholders' Equity
Other comprehensive loss				(5,886)
Net income				9,494
Ending Balance at Sep. 30, 2018	$ 21,130	87,118	(6,883)	101,365
Balances (in shares) at Sep. 30, 2018	5,956,652
Beginning Balance at Mar. 31, 2018	$ 21,040	82,620	(4,394)	99,266
Balances (in shares) at Mar. 31, 2018	5,956,880
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	$ 45			45
Shares forfeited (in shares)	(108)
Other comprehensive loss			(966)	(966)
Net income		3,068		3,068
Dividends declared		(924)		(924)
Ending Balance at Jun. 30, 2018	$ 21,085	84,764	(5,360)	100,489
Balances (in shares) at Jun. 30, 2018	5,956,772
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	$ 45			45
Shares forfeited (in shares)	(120)
Other comprehensive loss			(1,523)	(1,523)
Net income		3,278		3,278
Dividends declared		(924)		(924)
Ending Balance at Sep. 30, 2018	$ 21,130	87,118	(6,883)	101,365
Balances (in shares) at Sep. 30, 2018	5,956,652
Beginning Balance at Dec. 31, 2018	$ 21,170	89,101	(3,478)	106,793
Balances (in shares) at Dec. 31, 2018	5,955,242
Increase (Decrease) in Stockholders' Equity
Common stock issued - stock grants	$ 295			295
Common stock issued - stock grants (in shares)	26,084
Stock compensation expense	$ 56			56
Other comprehensive loss			2,769	2,769
Net income		2,811		2,811
Dividends declared		(1,015)		(1,015)
Ending Balance at Mar. 31, 2019	$ 21,521	90,897	(709)	111,709
Balances (in shares) at Mar. 31, 2019	5,981,326
Beginning Balance at Dec. 31, 2018	$ 21,170	89,101	(3,478)	106,793
Balances (in shares) at Dec. 31, 2018	5,955,242
Increase (Decrease) in Stockholders' Equity
Other comprehensive loss				4,839
Net income				9,664
Ending Balance at Sep. 30, 2019	$ 21,395	94,420	1,361	117,176
Balances (in shares) at Sep. 30, 2019	5,914,292
Beginning Balance at Mar. 31, 2019	$ 21,521	90,897	(709)	111,709
Balances (in shares) at Mar. 31, 2019	5,981,326
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	$ 58			58
Other comprehensive loss			2,162	2,162
Net income		3,237		3,237
Dividends declared		(1,019)		(1,019)
Ending Balance at Jun. 30, 2019	$ 21,579	93,115	1,453	116,147
Balances (in shares) at Jun. 30, 2019	5,981,326
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	$ 54			54
Common stock purchased and retired	$ (238)	(1,306)		(1,544)
Common stock purchased and retired (in shares)	(66,000)
Shares forfeited (in shares)	(1,034)
Other comprehensive loss			(92)	(92)
Net income		3,616		3,616
Dividends declared		(1,005)		(1,005)
Ending Balance at Sep. 30, 2019	$ 21,395	$ 94,420	$ 1,361	$ 117,176
Balances (in shares) at Sep. 30, 2019	5,914,292