6. Accrued Expenses (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Commissions payable	$ 44,788	$ 106,915
Dividends payable	0	2,099,148
Accrued payroll and related liabilities	1,604,597	1,461,019
Accrued bonuses	0	50,628
Accrued interest	1,491,509	556,646
Other accrued expenses	994,253	1,011,099
Accrued expenses	$ 4,135,147	$ 5,285,455