Quarterly report pursuant to Section 13 or 15(d)

Corrections to Previously Issued Consolidated Financial Statements - Schedule of Effect of Correction and Other Adjustments on Previously Reported Consolidated Balance Sheet (Detail)

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Corrections to Previously Issued Consolidated Financial Statements - Schedule of Effect of Correction and Other Adjustments on Previously Reported Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Jun. 30, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Accounts receivable, net $ 13,675 $ 12,622 $ 11,897
Total Current Assets 20,526 18,960 17,882
Deferred income taxes 12,116 12,128 14,039
Total Assets 98,284 95,357 91,533
Retained deficit (40,726) (40,920) (43,582)
Total Stockholders' Equity 50,957 50,320 47,262
Total Liabilities and Stockholders' Equity 98,284 $ 95,357 91,533
As Previously Reported [Member]      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Accounts receivable, net 16,953   12,304
Total Current Assets 23,804   18,289
Deferred income taxes 10,821   13,878
Total Assets 100,267   91,779
Retained deficit (38,743)   (43,336)
Total Stockholders' Equity 52,940   47,508
Total Liabilities and Stockholders' Equity 100,267   91,779
Adjustment [Member]      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Accounts receivable, net (3,278)   (407)
Total Current Assets (3,278)   (407)
Deferred income taxes 1,295   161
Total Assets (1,983)   (246)
Retained deficit (1,983)   (246)
Total Stockholders' Equity (1,983)   (246)
Total Liabilities and Stockholders' Equity $ (1,983)   $ (246)