Earnings Per Share - Schedule of Reconciliation of Weighted Average Shares Used in Calculation of Basic and Diluted Net (Loss) Income Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Weighted average common shares-basic	18,855,533	18,577,540	18,785,696	18,408,238
Effect of dilutive securities:
Unexercised stock options net of treasury share repurchase		195,846		156,284
Weighted average common shares-diluted	18,855,533	18,773,386	18,785,696	18,564,522