Note 10 - Accrued and Other Liabilities - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
Payroll and related	$ 2,422	$ 3,003
Deferred revenue	3,507
Accrued contract costs	622	809
Warranty reserve	150	159
Canadian goods and services and harmonized sales tax payable	0	1,556
Asset purchase holdback liability	714	0
Other	28	5
Total	7,443	12,083
Service [Member]
Deferred revenue	1,652	1,827
Hardware [Member]
Deferred revenue	$ 1,855	$ 4,724