REVENUE RECOGNITION (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Summary of changes in contract assets and liabilities for the quarter ended March 31, 2019 and 2018:

	Three Months Ended March 31,
	2019			2018
Contract assets
Contract assets, beginning	$	36,000		$	67,000
Contract assets at beginning of year transferred to accounts receivable	—			(42,000		)
Contract assets recorded on contracts during the period	13,000			2,000
Contract assets, ending	$	49,000		$	27,000
Contract liabilities
Contract liabilities, beginning	$	271,000		$	140,000
Recognition of revenue included in beginning of year contract liabilities	(112,000		)	(72,000		)
Contract liabilities, net of revenue recognized on contracts during the period	45,000			208,000
Foreign currently translation	$	—		$	2,000
Contract liabilities, ending	$	204,000		$	278,000

Revenue from External Customers by Geographic Areas

The following table presents our disaggregated revenue by region and source:

	Three Months Ended March 31,
	2019		2018
Revenue by geographic region:
United States	$	134,000	$	137,000
Switzerland	—		20,000
Total revenue	$	134,000	$	157,000
Revenue by source:
Design services	$	125,000	$	107,000
Royalties	9,000		50,000
Total revenue	$	134,000	$	157,000