Note 7 - Period and Predetermined Stock Price Needed for Vesting (Details) - Jun. 30, 2015 - $ / shares	Total
Share-based Compensation Award, Tranche One [Member]
Block 1	12 months after Grant Dates
Block 1	48 months after Grant Dates
Block 1 (in dollars per share)	$ 3.43
Share-based Compensation Award, Tranche Two [Member]
Block 1	24 months after Grant Dates
Block 1	60 months after Grant Dates
Block 1 (in dollars per share)	$ 4.69
Share-based Compensation Award, Tranche Three [Member]
Block 1	36 months after Grant Dates
Block 1	72 months after Grant Dates
Block 1 (in dollars per share)	$ 6.43
Share-Based Compensation Award Tranche Four [Member]
Block 1	48 months after Grant Dates
Block 1	84 months after Grant Dates
Block 1 (in dollars per share)	$ 8.81
Share-Based Compensation Award Tranche Five [Member]
Block 1	60 months after Grant Dates
Block 1	96 months after Grant Dates
Block 1 (in dollars per share)	$ 12.07