Earnings Per Share - Schedule of Computations of Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Numerator:
Net income (loss)	$ 4,438	$ (2,100)	$ 6,812	$ (5,027)
Change in the value of Private Placement Warrants	(99)	4,207	(332)	9,053
Net income (loss) Attributable to Parent	$ 4,339	$ (2,100)	$ 6,480	$ (5,027)
Common Shares [Member]
Denominator:
Weighted average common shares outstanding-basic	10,627,913	9,243,773	10,585,187	9,171,942
Incremental shares from assumed exercise of Private Placement Warrants, SAR, restricted stock and contingent consideration	525,242		518,688
Weighted average common shares outstanding-diluted	11,153,155	9,243,773	11,103,875	9,171,942
Earnings (loss) per share of common stock - basic and diluted
Earnings (loss) per share of common stock - basic	$ 0.42	$ (0.23)	$ 0.64	$ (0.55)
Earnings (loss) per share of common stock - diluted	$ 0.39	$ (0.23)	$ 0.58	$ (0.55)