Note 11 - Notes Payable (Details) - Embedded Derivative Financial Instruments [Member] |
3 Months Ended |
|---|---|
|
Aug. 31, 2016
$ / shares
| |
| Note 11 - Notes Payable (Details) [Line Items] | |
| Fair Value Measurements, Significant Assumptions | The following assumptions were used for the valuation of the derivative liability related to the 2016 Convertible Notes:- The quoted market price of the common stock, which decreased from $0.88 as of May 31, 2016 to $0.61 as of August 31, 2016, would fluctuate with the Company’s projected volatility;- The original conversion prices of the 2016 Convertible Notes, which are fixed at $1.07 and $0.80, or upon default/fundamental transaction at 52% of the 20 trading day low Volume Weighted Average Price (“VWAP”) would remain in effect;- An event of default at 24% interest rate would occur 0% of the time, increasing 1.00% per month to a maximum of 10%, and in place of a penalty there would be an alternative conversion price;- The projected volatility curve from an annualized analysis for each valuation period was based on the historical volatility of the Company and the term remaining for each note. The projected volatility was 93% at August 31, 2016;- The Company would redeem the notes (with a 130% prepayment penalty) projected initially at 0% of the time and increasing monthly by 1.0% to a maximum of 10.0% (from alternative financing being available for a redemption event to occur); and- The holder would automatically convert the notes at the maximum of 2 times the conversion price or the stock price if the common stock underlying the 2016 Convertible Notes was eligible for sale in compliance with securities laws (assumed at September 18, 2016) and the Company was not in default. |
| Fair Value Assumptions, Expected Volatility Rate | 93.00% |
| Fair Value Inputs, Prepayment Rate | 130.00% |
| Maximum [Member] | |
| Note 11 - Notes Payable (Details) [Line Items] | |
| Share Price | $ 0.88 |
| Fair Value Assumptions, Exercise Price | $ 1.07 |
| Fair Value Inputs, Probability of Default | 10.00% |
| Minimum [Member] | |
| Note 11 - Notes Payable (Details) [Line Items] | |
| Share Price | $ 0.61 |
| Fair Value Assumptions, Exercise Price | $ 0.80 |
| Fair Value Inputs, Probability of Default | 0.00% |