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)				4,162				$ 4,162
Other comprehensive income (loss), net of tax					6,453			6,453
Dividends on common stock				(403)
Dividends accrued on preferred stock				(99)
Restricted stock grants, net of forfeitures			0			0	0
Amortization of unearned compensation						58
Purchase of shares for treasury							(49)
Net shares acquired related to employee share-based compensation plans							(14)
Issuance of shares under stock plans			3				4
Balance, end of period at Mar. 31, 2019	55	22,401	57,417	40,868	(1,082)	(128)	(8,044)	$ 111,487
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ (0.02)
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)				(8,087)				(8,087)
Other comprehensive income (loss), net of tax					(8,792)			(8,792)
Dividends on common stock				0
Dividends accrued on preferred stock				(99)
Restricted stock grants, net of forfeitures			(44)			98	(54)
Amortization of unearned compensation						99
Purchase of shares for treasury							0
Net shares acquired related to employee share-based compensation plans							0
Issuance of shares under stock plans			1				2
Balance, end of period at Mar. 31, 2020	$ 55	$ 22,401	$ 57,777	$ 27,834	$ 1,667	$ (584)	$ (7,632)	$ 101,518
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock (in dollars per share)								$ 0