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 Income, Net [Member]	Total
Balance at Dec. 31, 2015	$ 8	$ 81,164	$ 170,068	$ 595	$ 251,835
Balance (in shares) at Dec. 31, 2015	790,787
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	$ 0	0	22,042	0	22,042
Cash Dividends Declared on Common Stock	0	0	(5,190)	0	(5,190)
Issuance of Common Stock	$ 0	840	0	0	840
Issuance of Common Stock (in shares)	1,600
Change in Net Unrealized Gain on Securities Available-for-Sale, Net of Tax	$ 0	0	0	2,871	2,871
Balance at Sep. 30, 2016	$ 8	82,004	186,920	3,466	$ 272,398
Balance (in shares) at Sep. 30, 2016	792,387				792,387
Balance at Dec. 31, 2016	$ 8	90,671	189,313	(11)	$ 279,981
Balance (in shares) at Dec. 31, 2016	807,329				807,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	24,589	0	$ 24,589
Cash Dividends Declared on Common Stock	$ 0	0	(5,459)	0	(5,459)
Issuance of Common Stock	$ 0	2,953	0	0	2,953
Issuance of Common Stock (in shares)	4,975
Change in Net Unrealized Gain on Securities Available-for-Sale, Net of Tax	$ 0	0	0	565	565
Balance at Sep. 30, 2017	$ 8	$ 93,624	$ 208,443	$ 554	$ 302,629
Balance (in shares) at Sep. 30, 2017	812,304				812,304