CASH AND CASH EQUIVALENTS (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash and Cash Equivalents [Abstract]
Money market funds	$ 20,978,947	$ 8,265,583
Checking and bank deposits	4,052,333	46,795,746
Total	$ 25,031,280	$ 55,061,329	$ 55,713,784	$ 40,485,466