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ACCOUNTS RECEIVABLE AND CONTRACTS IN PROGRESS
 3 Months Ended
Mar. 31, 2015
ACCOUNTS RECEIVABLE AND CONTRACTS IN PROGRESS [Abstract]  
ACCOUNTS RECEIVABLE AND CONTRACTS IN PROGRESS

3. ACCOUNTS RECEIVABLE AND CONTRACTS IN PROGRESS

 

Accounts receivable consist of the following (in thousands):

 

   March 31,   December 31,
  2015 2014
Contract receivables:        
  Contracts in progress $
                       134,457
  $
                      105,071
 
  Unbilled retentions  35,213   32,850 
Trade receivables  
                         28,667
   
                        16,202
 
Other receivables  216   195 
Allowance for doubtful accounts  (2,675)  (2,760)
  $195,878  $151,558 

 

Costs and recognized earnings in excess of billings on uncompleted contracts and billings in excess of costs and recognized earnings on uncompleted contracts consist of the following:

 

 

   March 31,   December 31,
  2015 2014
Costs incurred on contracts in progress $576,733  $531,129 
Estimated earnings  79,192   73,540 
   655,925   604,669 
Less progress billings  663,117   618,530 
  $(7,192) $(13,861)
The above is included in the accompanying condensed consolidated balance sheet under the following captions:        
Costs and recognized earnings in excess of billings on uncompleted contracts  24,656   28,098 
Billings in excess of costs and recognized earnings on uncompleted contracts  (31,848)  (41,959)
  $(7,192) $(13,861)