Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Detail)

v3.7.0.1
Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2017
Mar. 31, 2017
Revenue Recognition [Abstract]    
Company recognizes planned manufacturing process 28 days  
Direct labor hours worked on contracts 575 hours  
Substantial completion of manufacturing process 95.00%  
Receivables billed but not paid under retainage provisions in its customer contracts $ 873 $ 971