INCOME TAXES (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015
Effective income tax rate (as a percent)	(26.00%)	38.00%	51.00%	36.00%		36.00%
Reconciliation of federal income taxes and reported income taxes
Statutory federal tax benefit	$ 17,000	$ (57,000)	$ (38,000)	$ (327,000)
State income taxes (benefits)	8,000	(6,000)	24,000	(32,000)
Income tax credits	(20,000)	(14,000)	(60,000)	(39,000)
Return to provision true-up	(22,000)	5,000	(22,000)	5,000
Foreign tax benefit	44,000		44,000
Other	(40,000)	(4,000)	(4,000)	(4,000)
Income tax benefit	(13,000)	$ (76,000)	(56,000)	$ (397,000)
Unrecognized tax benefits
Net uncertain tax benefit positions that would increase (reduce) effective income tax rate, if recognized	$ 48,000		$ 48,000			$ 51,000
Forecast
Effective income tax rate (as a percent)					32.00%