Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2018

Revenue From Contract With Customer [Abstract]

Disaggregated Revenue

The following table provides information about disaggregated revenue by primary geographical market, major product line and timing of revenue recognition, and includes a reconciliation of the disaggregated revenue with reportable segments (in thousands):

	Year Ended December 31, 2018
	Third-Party Software		Proprietary Software		Total Software		Professional Engineering Service		Total
Primary geographical markets:
North America	$	58,523	$	3,305	$	61,828	$	7,260	$	69,088
Europe		2,239		115		2,354		701		3,055
Asia		397		534		931		340		1,271
Total	$	61,159	$	3,954	$	65,113	$	8,301	$	73,414
Major products/services lines:
Third-party software	$	61,159	$	-	$	61,159	$	-	$	61,159
Proprietary software		-		3,954		3,954		-		3,954
Professional engineering services		-		-		-		8,301		8,301
Total	$	61,159	$	3,954	$	65,113	$	8,301	$	73,414
Timing of revenue recognition:
Transferred at a point in time	$	61,035	$	2,967	$	64,002	$	1,592	$	65,594
Transferred over time		124		987		1,111		6,709		7,820
Total	$	61,159	$	3,954	$	65,113	$	8,301	$	73,414

Schedule of Contract Balances and Changes in Contract Balances

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

	December 31, 2018		December 31, 2017
Receivables	$	11,581	$	18,014
Short-term contract assets		1,053		937
Long-term contract assets		528		30
Short-term contract liabilities (deferred revenue)		1,652		3,219
Long-term contract liabilities (deferred revenue)		1,037		61

Significant changes in contract assets and liabilities balances were as follows (in thousands):

	December 31, 2018
	Contract Assets		Contract Liabilities (1)
Revenue recognized that was included in the contract liability at beginning of the period	$	-	$	3,663
Transferred to receivables from contract assets recognized at beginning of the period	$	263	$	-
(1) Comprised of deferred revenue

Estimated Revenue Expected to be Recognized in Future Related to Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period, in thousands. The estimated revenue does not include contracts with original durations of one year or less, amounts of variable consideration attributable to royalties, or contract renewals that were unexercised as of December 31, 2018.

	2019		2020		2021		2022
Third-party software	$	51	$	14	$	-	$	-
Proprietary software		2,215		2,415		1,240		196
Professional engineering services		-		-		-		-