XML 90 R29.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2019
Receivables [Abstract]  
Summary of Accounts Receivable

 

Accounts receivable consisted of the following:

 

 

December 31,

 

(table only in thousands)

 

2019

 

 

2018

 

Contract receivables

 

$

58,881

 

 

$

48,826

 

Trade receivables

 

 

12,135

 

 

 

7,296

 

Allowance for doubtful accounts

 

 

(2,582

)

 

 

(2,897

)

Total accounts receivable

 

$

68,434

 

 

$

53,225