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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
		Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net (Loss) Income, Basic		$ (3,038)	$ 3,286
Net (Loss) Income, Diluted		$ (3,038)	$ 3,286
Weighted Average Number of Shares Outstanding, Basic		2,037,080	2,142,396
Weighted Average Number of Shares Outstanding, Options	[1]		751,326
Weighted Average Number of Shares Outstanding, Diluted		2,037,080	2,893,722
Per Share Amount, Basic		$ (1.49)	$ 1.53
Per Share Amount, Diluted		$ (1.49)	$ 1.14
[1] The effect of the 767,500 outstanding stock option is anti-dilutive for the three months ended March 31, 2019 due to net loss for the period.

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