Accounts Receivable (Tables)
 6 Months Ended
Sep. 30, 2016
Receivables [Abstract]  
Accounts Receivable
 
 
September 30, 2016
 
March 31, 2016
Billed
 
$
11,332

 
$
13,220

Unbilled
 
6,616

 
4,763

Allowance for doubtful accounts
 
(471
)
 
(464
)
Accounts receivable, net
 
$
17,477

 
$
17,519