CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning Balances at Dec. 31, 2012	$ 131,115	$ 53	$ 45,357	$ 107,078	$ (18,566)	$ (2,807)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	8,731	0	0	8,731	0	0
Other comprehensive income (loss)	2,962	0	0	0	0	2,962
Restricted stock awards	131	0	131	0	0	0
Distribution of treasury stock for directors' deferred compensation plan	11	0	(75)	0	86	0
Distribution of shares of treasury stock granted for employee restricted stock awards, net	0	0	(206)	0	206	0
Restricted stock units for directors' deferred compensation plan	99	0	99	0	0	0
Cash dividends declared	(4,778)	0	0	(4,778)	0	0
Distribution of shares of treasury stock for directors' compensation	217	0	14	0	203	0
Distribution of shares of treasury stock for employee compensation	112	0	7	0	105	0
Forfeit of restricted stock awards	0	0	61	0	(61)	0
Sale of shares of treasury stock	71	0	11	0	60	0
Repurchase of shares of common stock	(93)	0	0	0	(93)	0
Ending Balances at Dec. 31, 2013	138,578	53	45,399	111,031	(18,060)	155
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	8,157	0	0	8,157	0	0
Other comprehensive income (loss)	(8,940)	0	0	0	0	(8,940)
Restricted stock awards	151	0	151	0	0	0
Distribution of treasury stock for directors' deferred compensation plan	3	0	(85)	0	88	0
Distribution of shares of treasury stock granted for employee restricted stock awards, net	0	0	(288)	0	288	0
Restricted stock units for directors' deferred compensation plan	94	0	94	0	0	0
Cash dividends declared	(4,805)	0	0	(4,805)	0	0
Distribution of shares of treasury stock for directors' compensation	273	0	59	0	214	0
Distribution of shares of treasury stock for employee compensation	117	0	25	0	92	0
Ending Balances at Dec. 31, 2014	133,628	53	45,355	114,383	(17,378)	(8,785)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	9,433	0	0	9,433	0
Other comprehensive income (loss)	(2,157)	0	0	0	0	(2,157)
Restricted stock awards	314	0	314	0	0	0
Distribution of treasury stock for directors' deferred compensation plan	3	0	(89)	0	92	0
Distribution of shares of treasury stock granted for employee restricted stock awards, net	0	0	(195)	0	195	0
Restricted stock units for directors' deferred compensation plan	95	0	95	0	0	0
Cash dividends declared	(4,843)	0	0	(4,843)	0	0
Distribution of shares of treasury stock for directors' compensation	271	0	24	0	247	0
Distribution of shares of treasury stock for employee compensation	93	0	8	0	85	0
Sale of shares of treasury stock	438	0	25	0	413	0
Repurchase of shares of common stock	(33)	0	0	0	(33)	0
Ending Balances at Dec. 31, 2015	$ 137,242	$ 53	$ 45,537	$ 118,973	$ (16,379)	$ (10,942)