9. LONG-TERM DEBT (Details) - Credit Facility Table - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Line of Credit Facility [Line Items]
Credit Facility Borrowing	$ 8,618,697	$ 14,584,008	$ 23,503,226
LIBOR Borrowings [Member]
Line of Credit Facility [Line Items]
Credit Facility Borrowing	7,000,000	12,000,000	22,000,000
Prime Borrowings [Member]
Line of Credit Facility [Line Items]
Credit Facility Borrowing	$ 1,618,697	$ 2,584,008	$ 1,503,226