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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Grants Receivable $ 13,875,000  
Revenue from Grants 2,600,000  
Other Nonoperating Income $ 525,000 $ 2,014,000
Number of years subject to statute of limitations by major tax jurisdiction 3 years  
Goodwill $ 32,466,000 $ 32,466,000
Minimum [Member]    
Property, Plant and Equipment, Useful Life 3 years  
Maximum [Member]    
Property, Plant and Equipment, Useful Life 5 years