Annual report pursuant to Section 13 and 15(d)

Geographic Regions (Details)

v3.22.2.2
Geographic Regions (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net revenue $ 106,298 $ 85,205 $ 65,463
Operating income (loss) 17,286 3,725 (485)
Net long-lived assets 6,552 14,083  
United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net revenue 89,197 58,937 48,089
Operating income (loss) 14,163 (4,174) (5,814)
Net long-lived assets 4,981 11,990  
China      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net revenue 13,854 22,828 13,510
Operating income (loss) 2,003 6,958 4,744
Net long-lived assets 1,571 2,093  
Other      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net revenue 3,247 3,440 3,864
Operating income (loss) $ 1,120 $ 941 $ 585