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, 2019	$ 8	$ 79,947	$ 286,036	$ 3,305	$ 369,296
Balance (in shares) at Dec. 31, 2019	793,033
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	43,241	0	43,241
Cash Dividends Declared on Common Stock	$ 0	0	(5,753)	0	(5,753)
Issuance of Common Stock	$ 0	403	0	0	403
Issuance of Common Stock (in shares)	523
Other Comprehensive Income (Loss)	$ 0	0	0	9,714	9,714
Balance at Sep. 30, 2020	$ 8	80,350	323,524	13,019	$ 416,901
Balance (in shares) at Sep. 30, 2020	793,556				793,556
Balance at Jun. 30, 2020	$ 8	80,350	308,714	14,656	$ 403,728
Balance (in shares) at Jun. 30, 2020	793,556
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	14,810	0	14,810
Other Comprehensive Income (Loss)	$ 0	0	0	(1,637)	(1,637)
Balance at Sep. 30, 2020	$ 8	80,350	323,524	13,019	$ 416,901
Balance (in shares) at Sep. 30, 2020	793,556				793,556
Balance at Dec. 31, 2020	$ 8	77,516	333,070	13,071	$ 423,665
Balance (in shares) at Dec. 31, 2020	789,646				789,646
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	50,368	0	$ 50,368
Cash Dividends Declared on Common Stock	$ 0	0	(5,922)	0	(5,922)
Cash Dividends Returned	0	0	7	0	7
Other Comprehensive Income (Loss)	0	0	0	(13,927)	(13,927)
Balance at Sep. 30, 2021	$ 8	77,516	377,523	(856)	$ 454,191
Balance (in shares) at Sep. 30, 2021	789,646				789,646
Balance at Jun. 30, 2021	$ 8	77,516	360,021	814	$ 438,359
Balance (in shares) at Jun. 30, 2021	789,646
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		0	17,502	0	17,502
Other Comprehensive Income (Loss)	$ 0	0	0	(1,670)	(1,670)
Balance at Sep. 30, 2021	$ 8	$ 77,516	$ 377,523	$ (856)	$ 454,191
Balance (in shares) at Sep. 30, 2021	789,646				789,646