Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Series C Preferred Stock [Member] Preferred Stock [Member]	Series C Preferred Stock [Member] Additional Paid-in Capital, Preferred [Member]	Series C Preferred Stock [Member] Common Stock [Member]	Series C Preferred Stock [Member] Additional Paid-in Capital, Common [Member]	Series C Preferred Stock [Member] Treasury Stock [Member]	Series C Preferred Stock [Member] Retained Earnings [Member]	Series C Preferred Stock [Member] AOCI Attributable to Parent [Member]	Series C Preferred Stock [Member]	Series D Preferred Stock [Member] Preferred Stock [Member]	Series D Preferred Stock [Member] Additional Paid-in Capital, Preferred [Member]	Series D Preferred Stock [Member] Common Stock [Member]	Series D Preferred Stock [Member] Additional Paid-in Capital, Common [Member]	Series D Preferred Stock [Member] Treasury Stock [Member]	Series D Preferred Stock [Member] Retained Earnings [Member]	Series D Preferred Stock [Member] AOCI Attributable to Parent [Member]	Series D Preferred Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital, Preferred [Member]	Common Stock [Member]	Additional Paid-in Capital, Common [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2017																			$ 2,966	$ 31,031	$ (2,114)	$ 32,726	$ (5,518)	$ 59,091
Cumulative effect of change in accounting principle, net of tax at Dec. 31, 2017																						187	(187)
Balance, as adjusted at Dec. 31, 2017																			2,966	31,031	(2,114)	32,913	(5,705)	59,091
Net income																						4,211		4,211
Other comprehensive income (loss)																							(652)	(652)
Issuance of stock	$ 421	$ 3,785						$ 4,206											524	15,112				15,636
Cash dividends declared on preferred stock						(64)		(64)						$ (27)		$ (27)
Issuance of common stock for restricted stock awards, including tax benefit																			11	(11)
Stock compensation expense																				269				269
Cash dividends declared on common stock																						(2,662)		(2,662)
Balance at Dec. 31, 2018																	421	3,785	3,501	46,401	(2,114)	34,371	(6,357)	80,008
Cumulative effect of change in accounting principle, net of tax at Dec. 31, 2018																						(181)		(181)
Balance, as adjusted at Dec. 31, 2018																	421	3,785	3,501	46,401	(2,114)	34,190	(6,357)	79,827
Net income																						7,954		7,954
Other comprehensive income (loss)																							1,022	1,022
Cash dividends declared on preferred stock						$ (129)		$ (129)						$ (53)		$ (53)
Issuance of common stock for restricted stock awards, including tax benefit																			12	(12)
Stock compensation expense																				368				368
Cash dividends declared on common stock																						(3,131)		(3,131)
Balance at Dec. 31, 2019																	$ 421	$ 3,785	$ 3,513	$ 46,757	$ (2,114)	$ 38,831	$ (5,335)	$ 85,858