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Note 2 - Summary of Significant Accounting Policies: m. Stock-based Compensation (Policies)
9 Months Ended
Jun. 30, 2021
Policies  
m. Stock-based Compensation

m.Stock-based Compensation – The Company estimates the fair value of its stock-based option compensation, and warrants when issued, using the Black-Scholes model, which requires the input of some subjective assumptions. These assumptions include estimating the length of time employees will retain their vested stock options before exercising them (“expected life”), the estimated volatility of the Company’s common stock price over the expected term (“volatility”), employee forfeiture rate, the risk-free interest rate and the dividend yield. Changes in the subjective assumptions can materially affect the estimate of fair value of stock-based compensation.  

The fair value of common stock awards is determined based upon the closing price of the Company’s stock on the grant date of the award. Compensation expense for grants that vest is recognized ratably over the vesting period.