Note 12 - Fair Value Measurements (Detail) - Summary of fair value measurement information for financial assets and liabilities measured at fair value on a recurring basis (USD $)	Dec. 31, 2012		Sep. 30, 2012
Financial Assets (Liabilities):
Derivative Contracts - Collars	$ 764,643	[1]		[1]
Collars [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets (Liabilities):
Derivative Contracts - Collars	764,643
Collars [Member]
Financial Assets (Liabilities):
Derivative Contracts - Collars	$ 764,643

[1] See Fair Value Measurements section for further disclosures regarding fair value of financial instruments.