Note 12 - Fair Value Measurements (Details) - Unobservable Inputs for Level 3 Fair Value Measurements (Fair Value, Inputs, Level 3 [Member], USD $)	9 Months Ended
	Jun. 30, 2013
Oil Collars [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	9.18%
Fair Value (in Dollars)	$ (18,765)
Oil Collars [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Price volatility curve, percentage	0.00%
Oil Collars [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Price volatility curve, percentage	15.22%
Natural Gas Collars [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	16.19%
Fair Value (in Dollars)	$ 571,804
Natural Gas Collars [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Price volatility curve, percentage	0.00%
Natural Gas Collars [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Price volatility curve, percentage	23.79%