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Stockholders' Equity (Tables)
12 Months Ended
Sep. 30, 2022
Equity [Abstract]  
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Year Ended September 30,
202220212020
Unvested at beginning of year16,757 38,936 283,195 
Granted— — 69,338 
Vested(3,118)(8,183)(105,000)
Forfeited— (13,996)(208,597)
Unvested at end of year13,639 16,757 38,936