3. COSTS, ESTIMATED EARNINGS AND BILLINGS ON UNCOMPLETED CONTRACTS

12 Months Ended

Dec. 31, 2017

Contractors [Abstract]

COSTS, ESTIMATED EARNINGS AND BILLINGS ON UNCOMPLETED CONTRACTS

Costs, estimated earnings and billings on uncompleted contracts are summarized below:

	December 31, 2017			December 31, 2016
Costs incurred on uncompleted contracts	$	9,564		$	8,858
Estimated earnings on uncompleted contracts		10,741			6,777
		20,305			15,635
Less: Billings to date on uncompleted contracts		(19,992	)		(17,907	)
	$	313		$	(2,272	)
Included in the accompanying consolidated balance sheets under the following captions:
Costs and estimated earnings in excess of billings on uncompleted contracts	$	925		$	1,077
Billings in excess of costs and estimated earnings on uncompleted contracts		(612	)		(3,349	)
	$	313		$	(2,272	)

The balance in costs and estimated earnings in excess of billings on uncompleted contracts at December 31, 2017 and 2016 consisted primarily of earned but unbilled revenues related to fixed-price projects.

The balance in billings in excess of costs and estimated earnings on uncompleted contracts at December 31, 2017 and 2016 consisted primarily of unearned billings related to fixed-price projects.