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Bank Borrowing - Narrative (Details)
€ in Millions
 1 Months Ended 9 Months Ended
Feb. 16, 2022
USD ($)
Aug. 18, 2021
USD ($)
Aug. 09, 2019
USD ($)
Sep. 30, 2022
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2024
CNY (¥)
Mar. 31, 2024
EUR (€)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
CNY (¥)
Sep. 30, 2023
USD ($)
Sep. 30, 2023
CNY (¥)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2022
USD ($)
Aug. 11, 2021
USD ($)
Apr. 30, 2021
EUR (€)
Debt Instrument [Line Items]                                
Lease completion buyout option, amount                         $ 1      
Long-term debt         $ 29,653,000             $ 38,360,000        
Jireh Semiconductor Incorporated | Sales-Lease Back Transaction with Jireh Semiconductor Incorporated                                
Debt Instrument [Line Items]                                
Debt financing term (in years)         5 years                      
Implied interest rate       7.51% 4.75%                      
Historical cost | €             € 12.0                  
Down payment amount | €                               € 6.0
Down payment percent       50.00%                       50.00%
Delivery payment, percent                           40.00%    
Delivery payment, amount                           $ 4,800,000    
Purchase price financing, percent       10.00%                        
Payments for purchase of optional hardware       $ 200,000                        
Outstanding balance         $ 9,800,000                      
Jireh Semiconductor Incorporated | Sales-Lease Back Transaction with Jireh Semiconductor Incorporated | Manufacturing machinery and equipment                                
Debt Instrument [Line Items]                                
Collateral amount         14,000,000                      
Secured Debt | Accounts Receivable Factoring Agreement August 9 2019                                
Debt Instrument [Line Items]                                
Accounts Receivable Factoring Agreement, Reduction Of Maximum Borrowing Capacity                             $ 8,000,000  
Secured Debt | Jireh                                
Debt Instrument [Line Items]                                
Line of credit facility, maximum borrowing capacity   $ 45,000,000                            
Debt instrument, term   5 years 6 months                            
Amount outstanding         31,500,000                      
Proceeds from lines of credit $ 45,000,000                              
Bank Of Communications Limited | Line of Credit | Line Of Credit Maturing December 1 2023                                
Debt Instrument [Line Items]                                
Line of credit facility, maximum borrowing capacity         19,400,000 ¥ 140,000,000                    
Amount outstanding         0                      
Long-Term Line of Credit         0                      
Hongkong And Shanghai Banking Corporation Limited | Secured Debt | Accounts Receivable Factoring Agreement August 9 2019                                
Debt Instrument [Line Items]                                
Accounts receivable factoring agreement, maximum borrowing capacity, percent of net accounts receivable     70.00%                          
Accounts receivable factoring agreement, maximum borrowing capacity     $ 30,000,000                          
Accounts receivable factoring agreement, remaining borrowing capacity         8,000,000                      
Accounts receivable factoring agreement, borrowed amount outstanding         0                      
Hongkong And Shanghai Banking Corporation Limited | Secured Debt | Accounts Receivable Factoring Agreement August 9 2019 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate                                
Debt Instrument [Line Items]                                
Basis spread on variable rate     2.01%                          
Industrial And Commercial Bank of China | Foreign Line of Credit                                
Debt Instrument [Line Items]                                
Line of credit facility, maximum borrowing capacity               $ 10,200,000 ¥ 72,000,000              
Amount outstanding         $ 0                      
China Construction Bank | Line of Credit | Line Of Credit Maturing Septmeber 2025                                
Debt Instrument [Line Items]                                
Line of credit facility, maximum borrowing capacity                   $ 6,800,000 ¥ 50,000,000