Revenues, Contract Assets and Contract Liabilities (Tables)

6 Months Ended

Jun. 30, 2019

Schedule of Disaggregation by Revenue

The Company disaggregates its sales with customers by revenue recognition method for its only segment, as the Company believes these factors affect the nature, amount, timing, and uncertainty of the Company’s revenue and cash flows.

	Three months ended				Six months ended
	June 30,				June 30,
	2019		2018		2019		2018
Fixed price contracts	$	46,721	$	37,814	$	88,897	$	80,030
Product sales		67,162		51,155		132,154		96,099
Total Revenues	$	113,883	$	88,969	$	221,051	$	176,129

Schedule of Geographical Information of Revenue from External Customer

The following table presents geographical information about revenues.

	Three months ended				Six months ended
	June 30,				June 30,
	2019		2018		2019		2018
Colombia	$	12,165	$	15,557	$	25,153	$	37,381
United States		99,326		69,852		191,360		132,845
Panama		913		1,043		1,676		1,857
Other		1,479		2,517		2,862		4,046
Total Revenues	$	113,883	$	88,969	$	221,051	$	176,129

Schedule of Contract Assets and Liabilities

The table below presents the components of net contract assets (liabilities).

	June 30, 2019			December 31, 2018
Contract assets — current	$	50,580		$	46,018
Contract assets — non-current		8,601			6,986
Contract liabilities — current		(14,013	)		(16,789	)
Contract liabilities — non-current		(564	)		(1,436	)
Net contract assets	$	44,604		$	34,779

Contract Liabilities [Member]

Schedule of Contract Assets and Liabilities

The components of contract liabilities are presented in the table below.

	June 30, 2019		December 31, 2018
Billings in excess of costs	$	3,101		4,393
Advances from customers on uncompleted contracts		11,476		13,832
Total contract liabilties		14,577		18,225
Less: current portion		14,013		16,789
Contract liabilities – non-current	$	564		1,436

Contract Assets [Member]

Schedule of Contract Assets and Liabilities

The components of contract assets are presented in the table below.

	June 30, 2019		December 31, 2018
Unbilled contract receivables, gross	$	27,644	$	21,703
Retainage		31,537		31,301
Total contract assets		59,181		53,004
Less: current portion		50,580		46,018
Contract Assets – non-current	$	8,601	$	6,986