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Note 10 - Subsequent Events	9 Months Ended
Note 10 - Subsequent Events	Sep. 30, 2014
Notes to Financial Statements
Subsequent Events [Text Block]	10. Subsequent Events During October 2014, we issued 2,928,571 shares of our common stock related to conversions of our Series B Convertible Preferred Stock. Subsequent to these conversions, 100 shares of our Series B Convertible Preferred Stock remain outstanding, convertible into 285,715 shares of our common stock. During October 2014, we entered into an agreement with certain holders of our Series A and Series C Common Stock Purchase Warrants (“Warrants”) with respect to the payment to them of a warrant exercise fee of $0.075 per share for each share purchased upon exercise of Warrants held by them. In exchange for the fee, they immediately exercised Warrants for an aggregate of 3,176,000 shares of our common stock, resulting in proceeds to us of $873,400 (net of the exercise fee). We reserved the right to revoke this warrant exercise fee arrangement as to any unexercised Warrants upon five business days’ notice. In November 2014, we issued 128,205 shares of our common stock for certain consulting services from a third party and recorded stock-based compensation expense of $50,000 related to the issuance.