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Note 10 - Accrued and Other Liabilities - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Sep. 30, 2022
--- | --- | ---
Payroll and related | $ 2,155 | $ 3,003
Deferred revenue | 4,596 |
Accrued contract costs | 454 | 809
Warranty reserve | 159 | 159
Canadian goods and services and harmonized sales tax payable | 0 | 1,556
Asset purchase holdback liability | 701 | 0
Other | 10 | 5
Total | 8,075 | 12,083
Service [Member] |  |
Deferred revenue | 1,585 | 1,827
Hardware [Member] |  |
Deferred revenue | $ 3,011 | $ 4,724

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