Note 10 - Equity - Summary of Valuation Assumptions (Detail)	Nov. 23, 2022	Nov. 22, 2022
Fortress Warrants [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected dividend yield		0.00%
Risk-free interest rate		3.80%
Expected volatility		69.30%
Expected Life		10 years
2022 Lamont Warrants [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected dividend yield	0.00%
Risk-free interest rate	3.90%
Expected volatility	87.70%
Expected Life	5 years