XML 47 R30.htm IDEA: XBRL DOCUMENT v3.7.0.1
Unbilled Receivables (Tables)
 6 Months Ended
Jul. 02, 2017
Contractors [Abstract]  
Schedule of Unbilled Receivables
Unbilled receivables consisted of the following:
 
July 2, 2017
 
December 31, 2016
Unbilled revenue
$
27,400

 
$
25,543

Advances and progress billings
(22,355
)
 
(21,331
)
Net unbilled receivables
$
5,045

 
$
4,212