Note 10 - Commitment and Contingencies (Details Textual)	6 Months Ended
	Jun. 30, 2017 USD ($)
Long-term Debt, Including Accrued Interest	$ 19,019,628
Interest Payable	3,949,113
Notes Payable	15,070,515
Debt Instrument, Debt Default, Amount	9,675,000
Debt Instrument, Collateral Amount	10,533
Expected Annual Operating and Administrative Expenses, Minimum	$ 2,400,000
Convertible Debt [Member]
Debt Instrument, Term	2 years