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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Components of Accrued liabilities      
Accrued employee compensation and benefits $ 2,888 $ 2,705  
Accrued workers’ compensation 648 912  
Contract liabilities 1,150 807 $ 236
Other accrued liabilities 1,791 1,444  
Total accrued liabilities $ 6,477 $ 5,868