Consolidated Statements of Equity (unaudited) - USD ($) $ in Thousands		Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock	Total Shareholders' Equity	Non-Controlling Interest
Balance at Dec. 31, 2018		$ 154,996	$ 1,224	$ 1,095	$ 112,807	$ 42,079	$ (633)	$ (3,015)	$ 153,557	$ 1,439
Balance (in shares) at Dec. 31, 2018				10,953,081
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		14,784				14,529			14,529	255
Common stock options exercised (shares)				11,869
Common stock options exercised		48		$ 1	47				48	0
Preferred stock shares conversion (in shares)				84,280
Preferred stock shares conversion		0	(674)	$ 9	665
Other comprehensive income		579					579		579
Stock compensation expense		94			94				94
Dividend on preferred stock		(9)				(9)			(9)
Dividend on common stock		(3,237)				(3,237)			(3,237)
Balance at Jun. 30, 2019		167,255	550	$ 1,105	113,613	53,362	(54)	(3,015)	165,561	1,694
Balance (in shares) at Jun. 30, 2019				11,049,230
Balance at Mar. 31, 2019		161,115	560	$ 1,104	113,561	47,624	(272)	(3,015)	159,562	1,553
Balance (in shares) at Mar. 31, 2019				11,044,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		7,609				7,468			7,468	141
Common stock options exercised (shares)				3,495
Common stock options exercised		0
Preferred stock shares conversion (in shares)				1,250
Preferred stock shares conversion		1	(10)	$ 1	10				1
Other comprehensive income		218					218		218
Stock compensation expense		42			42				42
Dividend on preferred stock		(8)				(8)			(8)
Dividend on common stock		(1,722)				(1,722)			(1,722)
Balance at Jun. 30, 2019		167,255	550	$ 1,105	113,613	53,362	(54)	(3,015)	165,561	1,694
Balance (in shares) at Jun. 30, 2019				11,049,230
Balance at Dec. 31, 2019		179,424	500	$ 1,213	134,706	44,143	58	(3,015)	177,605	1,819
Balance (in shares) at Dec. 31, 2019				12,132,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		14,012				13,753			13,753	259
Earnings distribution to non-controlling interest		(594)								(594)
Common stock options exercised (shares)				845
Common stock options exercised		0
Other comprehensive income		584					584		584
Stock compensation expense		125			125				125
Stock dividend (in shares)	[1]			(60)
Stock dividend	[1]	(3)			(1)	(2)			(3)
Dividend on preferred stock		(15)				(15)			(15)
Dividend on common stock		(3,792)				(3,792)			(3,792)
Balance at Jun. 30, 2020		189,741	500	$ 1,213	134,830	54,087	642	(3,015)	188,257	1,484
Balance (in shares) at Jun. 30, 2020				12,133,640
Balance at Mar. 31, 2020		184,870	500	$ 1,213	134,769	49,449	573	(3,015)	183,489	1,381
Balance (in shares) at Mar. 31, 2020				12,133,640
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		6,644				6,541			6,541	103
Other comprehensive income		69					69		69
Stock compensation expense		61			61				61
Dividend on preferred stock		(7)				(7)			(7)
Dividend on common stock		(1,896)				(1,896)			(1,896)
Balance at Jun. 30, 2020		$ 189,741	$ 500	$ 1,213	$ 134,830	$ 54,087	$ 642	$ (3,015)	$ 188,257	$ 1,484
Balance (in shares) at Jun. 30, 2020				12,133,640

[1] The Company retroactively adjusted the stock dividend declared in January 2020 into the December 2019 financial statements according to Generally Accepted Accounting Principals (GAAP). The actual shares of the stock dividend issued subsequently were less than the shares assumed for December 31, 2019 due to the cash distribution for fraction shares to the common shareholders. See accompanying notes to consolidated financial statements