Note 12 - Income Taxes - Reconciliation of Differences between Effective and Statutory Income Tax Rates (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Federal statutory rate	$ (2,673,920)	$ (3,457,068)	$ (3,610,711)
Federal statutory rate	35.00%	35.00%	35.00%
Change in valuation allowance	$ 4,091,895	$ 5,672,480	$ 4,935,302
Change in valuation allowance	(53.60%)	(57.50%)	(47.80%)
Net nontaxable income related to derivatives	$ (1,214,608)	$ (2,005,896)	$ (843,861)
Net nontaxable income related to derivatives	15.90%	20.30%	8.20%
Miscellaneous	$ 18,717	$ 72,577	$ (184,249)
Miscellaneous	(0.20%)	(0.70%)	2.00%

	0.00%	0.00%	0.00%
State and Local Jurisdiction [Member] \| IDAHO [Member]
State income taxes	$ (2,455)	$ (7,652)	$ (11,016)
State income taxes	0.03%	0.10%	0.10%
State and Local Jurisdiction [Member] \| UTAH [Member]
State income taxes	$ (191,070)	$ (243,973)	$ (239,093)
State income taxes	2.50%	2.50%	2.30%
State and Local Jurisdiction [Member] \| NEW YORK [Member]
State income taxes	$ (28,559)	$ (30,468)	$ (46,372)
State income taxes	0.40%	0.30%	0.40%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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