Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2019

Revenue Recognition

Schedule of disaggregation of revenues

The following table provides information about disaggregated revenue by timing of revenue recognition, (in thousands):

		Three Months Ended June 30, 2019
				License and
		Product		royalty		Contract
		revenue		revenue		revenue		Total
Timing of revenue recognition:
Products transferred at a point in time	$	-	$	-	$	36	$	36
Product and services transferred over time		-		-		1,204		1,204
Total	$	-	$	-	$	1,240	$	1,240

		Six Months Ended June 30, 2019
				License and
		Product		royalty		Contract
		revenue		revenue		revenue		Total
Timing of revenue recognition:
Products transferred at a point in time	$	199	$	-	$	52	$	251
Product and services transferred over time		-		-		2,840		2,840
Total	$	199	$	-	$	2,892	$	3,091

		Three Months Ended June 30, 2018
				License and
		Product		royalty		Contract
		revenue		revenue		revenue		Total
Timing of revenue recognition:
Products transferred at a point in time	$	-	$	-	$	57	$	57
Product and services transferred over time		-		-		1,957		1,957
Total	$	-	$	-	$	2,014	$	2,014

		Six Months Ended June 30, 2018
				License and
		Product		royalty		Contract
		revenue		revenue		revenue		Total
Timing of revenue recognition:
Products transferred at a point in time	$	-	$	11	$	156	$	167
Product and services transferred over time		-		-		4,035		4,035
Total	$	-	$	11	$	4,191	$	4,202

Costs in excess of billings and billings in excess of costs

The following table provides information about receivables, contract assets, and contract liabilities from contracts with customers (in thousands):

		June 30,		December 31,
		2019		2018
Accounts receivable, net	$	2,524	$	476
Costs and estimated earnings in excess of billings on uncompleted contracts		-		987
Billings on uncompleted contracts in excess of related costs		101		-
Other current liabilities		10,000		10,000

Schedule of contract assets and liabilities

Significant changes in the contract assets and the contract liabilities balances during the period are as follows (in thousands, except percentages):

		June 30,		December 31,
		2019		2018		$ Change	% Change
Contract assets	$	-	$	987	$	(987)	(100.0)
Contract liabilities		(101)		-		(101)	-
Net contract assets (liabilities)	$	(101)	$	987	$	(1,088)	(110.2)

Transaction price allocated to the remaining performance obligations, expected timing

Additionally, the estimated revenue does not include amounts of variable consideration attributable to royalties or unexercised contract renewals (in thousands):

		Remainder of 2019		2020
Product revenue	$	71	$	-
License and royalty revenue		-		-
Contract revenue		203		17