CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Unearned Stock Grant Compensation [Member]	Treasury Stock [Member]	Total
Beginning Balance at Dec. 31, 2015	$ 55	$ 22,401	$ 56,623	$ 25,443	$ 4,584	$ (273)	$ (6,341)	$ 102,492
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	0	898	0	0	0	898
Other comprehensive income, net of tax	0	0	0	0	977	0	0	977
Dividends declared on common stock	0	0	0	(408)	0	0	0	(408)
Dividends accrued on preferred stock	0	0	0	(99)	0	0	0	(99)
Amortization of unearned compensation	0	0	0	0	0	119	0	119
Purchase of shares for treasury	0	0	0	0	0	0	(170)	(170)
Issuance of shares under stock plans	0	0	10	0	0	0	5	15
Ending Balance at Mar. 31, 2016	55	22,401	56,633	25,834	5,561	(154)	(6,506)	103,824
Beginning Balance at Dec. 31, 2016	55	22,401	57,114	27,272	5,830	(428)	(6,738)	105,506
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	0	(221)	0	0	0	(221)
Other comprehensive income, net of tax	0	0	0	0	2,184	0	0	2,184
Dividends declared on common stock	0	0	0	(408)	0	0	0	(408)
Dividends accrued on preferred stock	0	0	0	(99)	0	0	0	(99)
Amortization of unearned compensation	0	0	0	0	0	116	0	116
Purchase of shares for treasury	0	0	0	0	0	0	(105)	(105)
Issuance of shares under stock plans	0	0	5	0	0	0	3	8
Ending Balance at Mar. 31, 2017	$ 55	$ 22,401	$ 57,119	$ 26,544	$ 8,014	$ (312)	$ (6,840)	$ 106,981