Note 9 - Fair Value Measurements (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Asset Retirement Obligation, Liabilities Incurred	$ 18,321	$ 49,275
Impairment Of Oil And Gas Cost Properties	727,845	3,726,267
Fair Value, Inputs, Level 3 [Member]
Asset Retirement Obligation, Liabilities Incurred	18,321	49,275
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Impairment Of Oil And Gas Cost Properties	$ 727,845	$ 3,726,267