REVENUE RECOGNITION (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Summary of changes in contract assets and liabilities for the six months ended June 30, 2019 and 2018:

	Six Months Ended June 30,
	2019			2018
Contract assets
Contract assets, beginning	$	36,000		$	67,000
Contract assets at beginning of year transferred to accounts receivable	(36,000		)	(42,000		)
Contract assets recorded on contracts during the period	8,000			2,000
Contract assets, ending	$	8,000		$	27,000
Contract liabilities
Contract liabilities, beginning	$	271,000		$	146,000
Recognition of revenue included in beginning of year contract liabilities	(147,000		)	(124,000		)
Contract liabilities, net of revenue recognized on contracts during the period	63,000			217,000
Foreign currently translation	$	—		$	1,000
Contract liabilities, ending	$	187,000		$	240,000

Revenue from External Customers by Geographic Areas

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Revenue by geographic region:
United States	$	63,000	$	105,000	$	197,000	$	242,000
Switzerland	—		19,000		—		39,000
Total revenue	$	63,000	$	124,000	$	197,000	$	281,000
Revenue by source:
Design services	$	57,000	$	84,000	$	182,000	$	191,000
Royalties	6,000		40,000		15,000		90,000
Total revenue	$	63,000	$	124,000	$	197,000	$	281,000