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Note 13 - Stock-based Compensation - Stock Option Valuation Assumptions (Details)
Sep. 01, 2021
Jul. 01, 2021
Modified Options [Member]    
Expected life (Year)   4 years 1 month 6 days
Expected volatility   34.44%
Risk-free rate   0.79%
Dividend yield   0.00%
The 2021 Plan [Member] | Share-based Payment Arrangement, Option [Member]    
Expected life (Year) 6 years 1 month 9 days 2 years 9 months 7 days
Expected volatility 43.31% 43.25%
Risk-free rate 0.94% 0.37%
Dividend yield 0.00% 0.00%