Quarterly report pursuant to Section 13 or 15(d)

12. Stock-based Compensation (Details - Option activity)

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12. Stock-based Compensation (Details - Option activity) - Stock Options [Member] - USD ($)
9 Months Ended 12 Months Ended
Jun. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Number of Shares      
Outstanding, beginning balance 231,668 211,668  
Granted 20,000  
Exercised 0  
Forfeited (31,250) 0  
Outstanding, ending balance 200,418 231,668 211,668
Exercisable 169,820 190,639  
Weighted Average Exercise Price      
Outstanding, beginning balance $ 14.84 $ 13.19  
Granted   32.24  
Outstanding, ending balance 15.88 14.84 $ 13.19
Exercisable $ 13.65 $ 11.89  
Weighed Average Remaining Contractual Life      
Outstanding, ending balance 2 years 7 months 17 days 3 years 15 days 3 years 5 months 20 days
Granted   9 years 7 days  
Exercisable 1 year 7 months 21 days 2 years 29 days  
Intrinsic value outstanding, beginning balance $ 162,500 $ 454,417  
Intrinsic value outstanding, ending balance 0 162,500 $ 454,417
Exercisable $ 0 $ 162,500