Note 4 - Summary of Significant Accounting Policies - Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Series 2023 PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative liability	$ 0
Series 2023 PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative liability	0
Series 2023 PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative liability	197,873
Series 2023 PIK Note Derivative Liability [Member]
Derivative liability	197,873	$ 262,764
Series A PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative liability	0
Series A PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative liability	0
Series A PIK Note Derivative Liability [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative liability	2,685,275
Series A PIK Note Derivative Liability [Member]
Derivative liability	$ 2,685,275	$ 4,876,093