LONG-TERM DEBT - Components (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Long-term debt
Long-term debt	$ 173,300,000
Loan Costs, net of accumulated amortization	(1,058,488)	$ (1,235,380)
Long-Term Debt	168,709,921	166,245,201
Long-term debt due within one year
Due Within One Year	7,300,000
Credit Facility
Long-term debt
Long-term debt	36,000,000	34,300,000
UBS Mortgage Note Payable
Long-term debt
Long-term debt	7,300,000	7,300,000
Long-term debt due within one year
Due Within One Year	7,300,000
Wells Fargo Mortgage Note Payable Originated September 30, 2014
Long-term debt
Long-term debt	30,000,000	30,000,000
Wells Fargo Mortgage Note Payable Originated April 15, 2016
Long-term debt
Long-term debt	25,000,000	25,000,000
4.50% Convertible Senior Notes due 2020
Long-term debt
Long-term debt, net of discount	$ 71,468,409	$ 70,880,581