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Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic Earnings Per share
Net income	$ 6,521	$ 4,344	$ 21,563	$ 13,268
Weighted average shares outstanding (in shares)	12,007,689	12,471,070	12,332,248	12,551,480
Basic earnings per share (in dollars per share)	$ 0.54	$ 0.35	$ 1.75	$ 1.06

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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