INCOME TAXES (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Taxes computed at the federal statutory rate	$ 2,882,000	$ (1,929,000)	$ 2,722,000
State income tax, net	176,000	(34,000)	70,000
Prior year true-up	2,000	(3,000)	325,000
Research and development tax credit	(235,000)	(246,000)	(177,000)
Change in Federal Statutory Rate	(207,000)
Permanent differences	92,000	146,000	51,000
[us-gaap:IncomeTaxExpenseBenefit]	$ 2,710,000	$ (2,066,000)	$ 2,991,000