REVENUE RECOGNITION (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Summary of changes in contract assets and liabilities for the six months ended June 30, 2020 and 2019:

	Six Months Ended June 30,
	2020			2019
Contract assets
Contract assets, beginning	$	—		$	36,000
Contract assets at beginning of year transferred to accounts receivable	—			(36,000		)
Contract assets recorded on contracts during the period	—			8,000
Contract assets, ending	$	—		$	8,000
Contract liabilities
Contract liabilities, beginning	$	1,731,000		$	271,000
Recognition of revenue included in beginning of year contract liabilities	(1,082,000		)	(147,000		)
Contract liabilities, net of revenue recognized on contracts during the period	427,000			63,000
Contract liabilities, ending	$	1,076,000		$	187,000