Fullscope Embezzlement - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2013	Jun. 30, 2009	Dec. 31, 2010 Activity
Extraordinary And Unusual Items [Abstract]
Embezzlement Activities					116,000
Increased accrual for pre-acquisition sales and use tax exposure	$ 550,000
Accrual for pre-acquisition sales and use tax exposure estimated			643,000
Fullscope Acquisition, an escrow account was established				1,300,000
Initial upfront purchase price consideration				10.00%
Pre-acquisition Fullscope escrow account				700,000
Escrow account with in settlement of the contingent consideration obligation		2,600,000
Combined value of two escrow accounts			4,600,000
Payments associated with sales and use tax liabilities			$ 858,000