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Earnings per Share - Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net (Loss) Income, Basic	$ (6,266)	$ 5,775	$ (6,436)	$ 2,737
Net (Loss) Income, Diluted	$ (6,266)	$ 5,775	$ (6,436)	$ 2,737
Weighted Average Number of Shares Outstanding, Basic	1,994,177	2,026,119	1,994,675	2,031,569
Weighted Average Number of Shares Outstanding, Options	0	761,583	0	761,169
Weighted Average Number of Shares Outstanding, Diluted	1,994,177	2,787,702	1,994,675	2,792,738
Per Share Amount, Basic	$ (3.14)	$ 2.85	$ (3.23)	$ 1.35
Per Share Amount, Diluted	$ (3.14)	$ 2.07	$ (3.23)	$ 0.98

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