INTANGIBLES AND OTHER ASSETS - SCHEDULE OF INTANGIBLES AND OTHER ASSETS (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Other assets	$ 369,000		$ 365,000
Intangibles and other assets, net	$ 369,000		365,000
Intangible asset - useful life	10 years
Amortization of intangibles	$ 0	$ 3,000
Purchased patents and other purchased intangibles
Finite-Lived Intangible Assets [Line Items]
Purchased patents and other purchased intangible assets	4,605,000		4,605,000
Less: Accumulated amortization of purchased patents and other purchased intangibles	(4,605,000)		(4,605,000)
Purchased patents and other purchased intangible assets, net	$ 0		$ 0