Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Stock-based Compensation - Valuation Assumptions (Details)

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Note 4 - Stock-based Compensation - Valuation Assumptions (Details)
6 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dividend yield 0.00%  
Expected volatility 46.90%  
Risk-free interest rate 0.24%  
Expected life (Year) 5 years  
Vesting period (Year) 3 years 4 years 284 days