Note 6 - Stockholders' Equity and Dilutive Equity Instruments (Details Textual) - USD ($) $ / shares in Units, $ in Millions |
Jun. 24, 2022 |
Jun. 30, 2022 |
Apr. 22, 2022 |
Jun. 30, 2021 |
---|---|---|---|---|
Out-of-the-money Warrants [Member] | ||||
Class of Warrant or Right, Outstanding (in shares) | 5,923,399 | 5,923,399 | ||
Series A Warrants [Member] | ||||
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 57.06 | $ 57.06 | ||
Series B Warrants [Member] | ||||
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | 62.28 | 62.28 | ||
GLF Equity Warrants [Member] | ||||
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 100.00 | $ 100.00 | ||
Warrans Issued to Acquire Swire Pacific Offshore Holdings Ltd. [Member] | ||||
Fair Value Adjustment of Warrants | $ 14.2 | |||
Share Price (in dollars per share) | $ 21.83 | $ 20.08 | ||
Adjustments to Additional Paid in Capital, Warrant Issued | $ 176.8 |