LONG-TERM DEBT - Interest Expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
LONG-TERM DEBT
Interest expense	$ 1,921,000	$ 1,771,000	$ 6,107,000	$ 5,164,000
Amortization of Loan Costs	103,000	125,000	389,656	350,292
Amortization of Discount on Convertible Notes	321,000	301,000	947,419	888,851
Capitalized Interest		(124,000)		(124,000)
Total Interest Expense	2,345,000	2,073,000	7,444,000	6,279,000
Total Interest Paid	$ 2,798,000	$ 2,588,000	$ 6,989,000	$ 6,026,000