Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Income (Loss) Available to Common Stockholders
Net Income (Loss) Attributable to Parent	$ 4,086	$ (2,272)	$ 7,542	$ 5,689
Less: net income allocated to participating securities	232	0	437	236
Net income (loss) available to common shareholders	$ 3,854	$ (2,272)	$ 7,105	$ 5,453
Weighted average common shares outstanding - basic (in shares)	8,002,000	7,916,000	7,994,000	7,899,000
Effect of dilutive securities (in shares)	12,000	0	19,000	2,000
Weighted average common and potentially issuable common shares outstanding - diluted (in shares)	8,014,000	7,916,000	8,013,000	7,901,000
Basic net income per share (in dollars per share)	$ 0.48	$ (0.29)	$ 0.89	$ 0.69
Diluted net income per share (in dollars per share)	$ 0.48	$ (0.29)	$ 0.89	$ 0.69
Participating Securities
Net Income (Loss) Available to Common Stockholders
Less: net income allocated to participating securities	$ 232	$ 0	$ 437	$ 236
Weighted average common shares outstanding - basic (in shares)	482,000	0	491,000	342,000
Effect of dilutive securities (in shares)	0	0	0	0
Weighted average common and potentially issuable common shares outstanding - diluted (in shares)	482,000	0	491,000	342,000
Basic net income per share (in dollars per share)	$ 0.48	$ 0	$ 0.89	$ 0.69
Diluted net income per share (in dollars per share)	$ 0.48	$ 0	$ 0.89	$ 0.69