Note 5 - Senior Credit Facility, Subordinated Convertible Note, Net - CD Financial, LLC and Other Long Term Debt - Calculation of Fair Value of Derivative Liability (Details)	Jun. 30, 2018 $ / shares	Jun. 30, 2017 $ / shares
Closing Price of Common Stock (in dollars per share)	$ 0.15	$ 0.19
Measurement Input, Risk Free Interest Rate [Member]
Measurement input	0.0246	0.0149
Measurement Input, Price Volatility [Member]
Measurement input	0.513	0.9811
Measurement Input, Expected Term [Member]
Measurement input	18	28
Measurement Input, Expected Dividend Rate [Member]
Measurement input	0	0