Consolidated Statement of Shareholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Unearned ESOP Shares	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance at Dec. 31, 2016	$ (214,376)	$ (41,110)	$ (1,136)	$ (111,166)	$ 1,233	$ 1,010	$ (63,207)
Beginning balance (in shares) at Dec. 31, 2016		123,098	11,362,716
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	(2,923)						(2,923)
Dividends on Series B and Series C preferred stock	(1,622)						(1,622)
Dividends on common stock, $0.18 per share	(2,442)						(2,442)
Issuance of common stock, net of offering expenses of $622	51,353		$ 459	50,894
Issuance of common stock, net of offering expenses of $622 (in shares)			4,583,334
Restricted stock grant			$ 6	(6)
Restricted stock grant (in shares)			58,090
Conversion of Series C preferred stock to common stock		$ (18)	$ 0	18
Conversion of Series C preferred stock to common stock (in shares)		(183)	1,017
ESOP shares released for allocation	(269)			50	(219)
Exercise of stock options	266		$ 2	264
Exercise of stock options (in shares)			20,498
Vested restricted stock (in shares)			700
Stock option and restricted stock compensation expense	66			66
Change in accumulated other comprehensive income	2,227					2,227
Ending balance at Jun. 30, 2017	$ (261,570)	$ 41,092	$ (1,603)	$ (162,452)	$ 1,014	$ (1,217)	$ (56,220)
Ending balance (in shares) at Jun. 30, 2017		122,915	16,026,355