Note 18 - Segment Information - Segment Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Product sales	$ 5,739	$ 11,213	$ 10,100	$ 21,700
Long-lived assets	11,226		11,226		$ 9,978
Assets	51,032		51,032		49,905
Loss from operations	(6,994)	(3,410)	(14,224)	(6,898)
Depreciation and amortization	731	639	1,460	1,282
Income Tax Expense (Benefit)	(5)	8	(434)	8
Intersegment Eliminations [Member]
Product sales	1,536	1,386	3,024	2,582
Hardware [Member]
Long-lived assets	1,369		1,369		1,427
Assets	25,925		25,925		28,878
Hardware [Member] | Operating Segments [Member]
Product sales	3,999	10,360	6,945	19,945
Loss from operations	(2,771)	387	(5,886)	359
Depreciation and amortization	98	100	194	199
Income Tax Expense (Benefit)	(5)	8	(5)	8
Hardware [Member] | Intersegment Eliminations [Member]
Product sales	0	0	0	0
Software [Member]
Long-lived assets	9,857		9,857		8,551
Assets	25,107		25,107		$ 21,027
Software [Member] | Operating Segments [Member]
Product sales	1,740	853	3,155	1,755
Loss from operations	(4,223)	(3,797)	(8,338)	(7,257)
Depreciation and amortization	633	539	1,266	1,083
Income Tax Expense (Benefit)	0		(429)	0
Software [Member] | Intersegment Eliminations [Member]
Product sales	$ 1,536	$ 1,386	$ 3,024	$ 2,582