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Accounts Receivable
3 Months Ended
Mar. 31, 2016
Receivables [Abstract]  
Accounts Receivable

3.

Accounts Receivable

 

(Table only in thousands)

 

March 31,

2016

 

 

December 31,

2015

 

Trade receivables

 

$

12,120

 

 

$

12,800

 

Contract receivables

 

 

73,898

 

 

 

86,129

 

Allowance for doubtful accounts

 

 

(1,190

)

 

 

(1,151

)

 

 

$

84,828

 

 

$

97,778

 

 

Balances billed but not paid by customers under retainage provisions in contracts amounted to approximately $1.7 million and $2.3 million at March 31, 2016 and December 31, 2015, respectively. Retainage receivables on contracts in progress are generally collected within a year after contract completion.

 

The provision for doubtful accounts was $0.1 million and $45,000 for the three-month periods ended March 31, 2016 and 2015, respectively.