Note 14 - Net Loss Per Share - Schedule of Dilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Dilutive securities (in shares)	170,952	146,403	184,588	134,929
Time Based Restricted Stock Units [Member]
Dilutive securities (in shares)	81,167	78,361	110,447	89,752
Performance Based Restricted Stock Units [Member]
Dilutive securities (in shares)	83,071	68,042	70,898	45,177
Employee Stock Purchase Plan [Member]
Dilutive securities (in shares)	6,714	0	3,243	0