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 (Loss) [Member]	Unearned Stock Grant Compensation [Member]	Treasury Stock [Member]	Total
Balance, beginning of period at Dec. 31, 2018	$ 55	$ 22,401	$ 57,414	$ 37,208	$ (7,535)	$ (186)	$ (7,985)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(264)				$ (264)
Other comprehensive income, net of tax					12,262			12,262
Dividends on common stock				(403)
Dividends accrued on preferred stock				(199)
Restricted stock grants, net of forfeitures			24			(71)	47
Amortization of unearned compensation						107
Purchase of shares for treasury							(71)
Net shares acquired related to employee share-based compensation plans							(49)
Issuance of shares under stock plans			6				9
Balance, end of period at Jun. 30, 2019	55	22,401	57,444	36,342	4,727	(150)	(8,049)	$ 112,770
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ (0.02)
Balance, beginning of period at Mar. 31, 2019	55	22,401	57,417	40,868	(1,082)	(128)	(8,044)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(4,426)				$ (4,426)
Other comprehensive income, net of tax					5,809			5,809
Dividends on common stock				0
Dividends accrued on preferred stock				(100)
Restricted stock grants, net of forfeitures			24			(71)	47
Amortization of unearned compensation						49
Purchase of shares for treasury							(22)
Net shares acquired related to employee share-based compensation plans							(35)
Issuance of shares under stock plans			3				5
Balance, end of period at Jun. 30, 2019	55	22,401	57,444	36,342	4,727	(150)	(8,049)	$ 112,770
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ 0
Balance, beginning of period at Dec. 31, 2019	55	22,401	57,820	36,020	10,459	(781)	(7,580)	$ 118,394
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(1,555)				(1,555)
Other comprehensive income, net of tax					7,005			7,005
Dividends on common stock				0
Dividends accrued on preferred stock				(199)
Restricted stock grants, net of forfeitures			(377)			61	316
Amortization of unearned compensation						254
Purchase of shares for treasury							0
Net shares acquired related to employee share-based compensation plans							(10)
Issuance of shares under stock plans			(8)				13
Balance, end of period at Jun. 30, 2020	55	22,401	57,435	34,266	17,464	(466)	(7,261)	$ 123,894
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ 0
Balance, beginning of period at Mar. 31, 2020	55	22,401	57,777	27,834	1,667	(584)	(7,632)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				6,532				$ 6,532
Other comprehensive income, net of tax					15,797			15,797
Dividends on common stock				0
Dividends accrued on preferred stock				(100)
Restricted stock grants, net of forfeitures			(333)			(37)	370
Amortization of unearned compensation						155
Purchase of shares for treasury							0
Net shares acquired related to employee share-based compensation plans							(10)
Issuance of shares under stock plans			(9)				11
Balance, end of period at Jun. 30, 2020	$ 55	$ 22,401	$ 57,435	$ 34,266	$ 17,464	$ (466)	$ (7,261)	$ 123,894
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ 0