Condensed Consolidated Statement of Shareholders’ Equity - USD ($) $ in Thousands	Common Stock	Preferred Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at beginning of the period at Dec. 31, 2016	$ 20,061	$ 41,581	$ 145,274	$ (628)	$ 206,288
Balance at beginning of the period (in shares) at Dec. 31, 2016	21,111,200	41,625
Condensed Consolidated Statements of Shareholders’ Equity
Net income			34,355		34,355
Shares issued for stock compensation plans	$ 42				42
Shares issued for stock compensation plans (in shares)	3,200
Cash paid in lieu of fractional shares in stock split	(4)
Shares issued for RICHMAC acquisition	$ 8,127				8,127
Shares issued for RICHMAC acquisition (in shares)	383,271
Dividends on preferred stock			(2,498)		(2,498)
Dividends on common stock, $0.18 and $0.15 per share for the nine months ended 2018 and 2017 respectively			(3,186)		(3,186)
Other comprehensive income (loss)				157	157
Balance at end of the period at Sep. 30, 2017	$ 28,230	$ 41,581	173,945	(471)	243,285
Balance at end of the period (in shares) at Sep. 30, 2017	21,497,667	41,625
Balance at beginning of the period at Dec. 31, 2017	$ 134,891	$ 41,581	192,008	(1,006)	367,474
Balance at beginning of the period (in shares) at Dec. 31, 2017	28,685,167	41,625
Condensed Consolidated Statements of Shareholders’ Equity
Net income			47,452		47,452
Shares issued for stock compensation plans	$ 130				130
Shares issued for stock compensation plans (in shares)	8,869
Dividends on preferred stock			(2,498)		(2,498)
Dividends on common stock, $0.18 and $0.15 per share for the nine months ended 2018 and 2017 respectively			(5,164)		(5,164)
Reclassification of deferred tax asset due to tax reform			243	(243)
Other comprehensive income (loss)				(48)	(48)
Balance at end of the period at Sep. 30, 2018	$ 135,021	$ 41,581	$ 232,041	$ (1,297)	$ 407,346
Balance at end of the period (in shares) at Sep. 30, 2018	28,694,036	41,625