Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income, Net [Member]	Total
Balance at Dec. 31, 2017	$ 8	$ 93,624	$ 206,845	$ (817)	$ 299,660
Balance (in shares) at Dec. 31, 2017	812,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	32,491	0	32,491
Cash Dividends Declared on Common Stock	$ 0	0	(5,665)	0	(5,665)
Repurchase of Common Stock	$ 0	(31,152)	0	0	(31,152)
Repurchase of Common Stock (in shares)	(44,503)
Issuance of Common Stock	$ 0	10,502	0	0	$ 10,502
Issuance of Common Stock (in shares)	15,920				2,400
Change in Net Unrealized Loss on Securities Available-for-Sale, net of tax	$ 0	0	0	(5,745)	$ (5,745)
Balance at Sep. 30, 2018	$ 8	72,974	233,671	(6,562)	$ 300,091
Balance (in shares) at Sep. 30, 2018	783,721				783,721
Balance at Jun. 30, 2018	$ 8	99,192	221,671	(5,379)	$ 315,492
Balance (in shares) at Jun. 30, 2018	821,073
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	12,000	0	12,000
Cash Dividends Declared on Common Stock	$ 0	0	0	0	0
Repurchase of Common Stock	$ 0	(31,152)	0	0	(31,152)
Repurchase of Common Stock (in shares)	(44,503)
Issuance of Common Stock	$ 0	4,934	0	0	4,934
Issuance of Common Stock (in shares)	7,151
Change in Net Unrealized Loss on Securities Available-for-Sale, net of tax	$ 0	0	0	(1,183)	(1,183)
Balance at Sep. 30, 2018	$ 8	72,974	233,671	(6,562)	$ 300,091
Balance (in shares) at Sep. 30, 2018	783,721				783,721
Balance at Dec. 31, 2018	$ 8	72,974	241,221	(2,988)	$ 311,215
Balance (in shares) at Dec. 31, 2018	783,721				783,721
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	41,392	0	$ 41,392
Cash Dividends Declared on Common Stock	$ 0	0	(5,550)	0	(5,550)
Issuance of Common Stock	$ 0	2,564	0	0	2,564
Issuance of Common Stock (in shares)	3,586
Change in Net Unrealized Loss on Securities Available-for-Sale, net of tax	$ 0	0	0	6,106	6,106
Balance at Sep. 30, 2019	$ 8	75,538	277,063	3,118	$ 355,727
Balance (in shares) at Sep. 30, 2019	787,307				787,307
Balance at Jun. 30, 2019	$ 8	75,538	263,325	2,638	$ 341,509
Balance (in shares) at Jun. 30, 2019	787,307
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	13,738	0	13,738
Cash Dividends Declared on Common Stock	$ 0	0	0	0	0
Issuance of Common Stock	$ 0	0	0	0	0
Issuance of Common Stock (in shares)	0
Change in Net Unrealized Loss on Securities Available-for-Sale, net of tax	$ 0	0	0	480	480
Balance at Sep. 30, 2019	$ 8	$ 75,538	$ 277,063	$ 3,118	$ 355,727
Balance (in shares) at Sep. 30, 2019	787,307				787,307