Summary Of Significant Accounting Policies (Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	May 28, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Basic
Net income		$ 3,489	$ 10,068	$ 9,910	$ 12,074
Earnings allocated to participating securities (Series C preferred stock)			(1,218)		(1,866)
Net income attributable to common stockholders		$ 3,489	$ 8,850	$ 9,910	$ 10,208
Weighted average common shares outstanding including unvested share-based payment awards		6,643,318	5,777,816	6,633,698	5,575,856
Less: Unvested share-based payment awards-2019 Plan		(106,896)	(38,719)	(96,615)	(39,335)
Average shares		6,536,422	5,739,097	6,537,083	5,536,521
Basic earnings per common share		$ 0.53	$ 1.54	$ 1.52	$ 1.84
Diluted
Net earnings allocated to common stockholders		$ 3,489	$ 8,850	$ 9,910	$ 10,208
Weighted average common shares outstanding for basic earnings per common share		6,536,422	5,739,097	6,537,083	5,536,521
Add: Dilutive effects of assumed exercises of stock options		45,935	24,762	46,278	25,591
Add: Dilutive effects of unvested share-based payment awards-2019 Plan		106,896	38,719	96,615	39,335
Average shares and dilutive potential common shares		6,689,253	5,802,578	6,679,976	5,601,447
Diluted earnings per common share		$ 0.52	$ 1.53	$ 1.48	$ 1.82
Series C Preferred Stock [Member]
Basic
Net income
Diluted
Shares issued upon conversion	12,607
Non-Voting Common Stock [Member]
Basic
Net income
Diluted
Shares issued upon conversion	1,260,700