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ACCOUNTS RECEIVABLE, NET (Tables)
 6 Months Ended
Jun. 30, 2020
Receivables [Abstract]  
Schedule of accounts receivable, net
Accounts receivable, net consists of the following:
(in thousands)
 
June 30,
2020
 
December 31,
2019
 
 
 
 
 
Billed
 
$
30,850

 
$
35,921

Unbilled
 
9,800

 
12,166


 
40,650

 
48,087

Less: Allowance for credit losses
 
(5,313
)
 
(4,472
)
 
 
 
 
 
Total
 
$
35,337

 
$
43,615