Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Preferred Stock [Member] Series E Preferred Stock [Member]	Preferred Stock [Member] Series F Preferred Stock [Member]	Common Stock [Member] Voting Common Stock [Member]	Common Stock [Member] Nonvoting Common Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares)	6,198	4,304	4,017,907	1,371,600	5,389,507
Balances (in shares) at Dec. 31, 2015	6,198	4,304	4,017,907	1,371,600	5,389,507
Balances at Dec. 31, 2015	$ 1,644	$ 1,127			$ 120,699	$ 23,654	$ (110,808)	$ (4,299)	$ 32,017
Issuances of unvested stock (in shares)			35,465		34,465
Forfeited unvested stock (in shares)			(1,972)		(1,972)
Reverse stock split rounding shares (in shares)			1,533		1,533
Stock-based compensation expense						443			443
Net income (loss)							(2,753)		(2,753)
Net change in accumulated other comprehensive loss, net of taxes								(2,004)	(2,004)
Issuance of stock (in shares)			580,000	220,000	800,000
Issuance of stock					$ 5,030				5,030
Balances (in shares) at Dec. 31, 2016	6,198	4,304	4,632,933	1,591,600	6,224,533
Balances at Dec. 31, 2016	$ 1,644	$ 1,127			$ 125,729	24,097	(113,561)	(6,303)	32,733
Balances (in shares)	6,198	4,304	4,017,907	1,371,600	5,389,507
Balances (in shares)	6,198	4,304	4,632,933	1,591,600	6,224,533
Issuances of unvested stock (in shares)			37,865		37,865
Forfeited unvested stock (in shares)			(1,316)		(1,316)
Reverse stock split rounding shares (in shares)			(1,218)		(1,218)
Stock-based compensation expense						400			400
Net income (loss)							38,453		38,453
Net change in accumulated other comprehensive loss, net of taxes								1,087	1,087
Balances (in shares) at Dec. 31, 2017	6,198	4,304	6,039,864	220,000	6,259,864
Balances at Dec. 31, 2017	$ 1,644	$ 1,127			$ 125,729	24,497	(75,108)	(5,216)	72,673
Non-voting shares converted to voting (in shares)			1,371,600	(1,371,600)
Balances (in shares)	6,198	4,304	4,632,933	1,591,600	6,224,533
Balances (in shares)	6,198	4,304	6,039,864	220,000	6,259,864
Issuances of unvested stock (in shares)			52,856		52,856
Stock-based compensation expense						524			524
Net income (loss)							8,794		8,794
Net change in accumulated other comprehensive loss, net of taxes								(1,299)	(1,299)
Issuance of stock (in shares)			150,000	1,000,000	1,150,000
Issuance of stock					$ 14,910				14,910
Balances (in shares) at Dec. 31, 2018			6,242,720	1,220,000	7,462,720
Balances at Dec. 31, 2018					$ 140,639	24,287	(66,201)	(6,628)	92,097
Balances (in shares)	6,198	4,304	6,039,864	220,000	6,259,864
Redemption and retirement of preferred shares (in shares)	(6,198)	(4,304)
Redemption and retirement of preferred shares	$ (1,644)	$ (1,127)				(734)			(3,505)
Reclassification of disproportionate tax effect due to change in federal tax rate							$ 113	$ (113)
Balances (in shares)			6,242,720	1,220,000	7,462,720