SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Cash and cash equivalents	$ 50,918,000	$ 20,608,000
Corporate bonds	1,065,000	1,061,000
Total	51,983,000	21,669,000
Level 1 [Member]
Cash and cash equivalents	50,918,000	20,608,000
Corporate bonds	1,065,000	1,061,000
Total	51,983,000	21,669,000
Level 2 [Member]
Cash and cash equivalents
Corporate bonds
Total
Level 3 [Member]
Cash and cash equivalents
Corporate bonds
Total