Note 9 - Derivative Instruments and Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	December 31, 2014						December 31, 2013
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Investment	$	8,300,740		—		—	$	13,817,439		—		—