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Income Taxes (Tables)
12 Months Ended
Sep. 30, 2022
Income Tax Disclosure [Abstract]  
Schedule of Components of Provision For Income Taxes of Continuing Operations The components of the provision for income taxes of continuing operations are as follows:
 Year Ended September 30,
 202220212020
(in thousands)
Current tax provision (benefit):   
U.S. Federal$— $— $— 
State487 293 382 
Foreign555 847 313 
1,042 1,140 695 
Deferred tax provision (benefit):   
U.S. Federal4,962 (23,315)74 
State1,275 (1,252)(27)
Foreign50 57 59 
6,287 (24,510)106 
Total (benefit) provision$7,329 $(23,370)$801 
Schedule of Significant Components of Deferred Tax Assets And Liabilities Significant components of the Company's deferred tax assets and liabilities are as follows:
 September 30,
 20222021
(in thousands)
Deferred tax assets:  
Net operating losses—Foreign$12,409 $13,593 
Net operating losses—U.S. 24,054 31,456 
Accrued vacation and bonus701 678 
Inventory capitalization683 219 
Inventory reserves24 — 
Allowance for doubtful accounts113 96 
Stock compensation expense2,198 1,415 
Operating lease liabilities3,565 3,605 
Depreciation— 2,339 
Other845 897 
Total deferred tax assets before valuation allowance44,592 54,298 
Less: valuation allowance(12,259)(13,813)
Net deferred tax assets32,333 40,485 
Deferred tax liabilities:  
Amortization of intangibles 3,453 107 
Amortization of goodwill7,595 7,322 
Depreciation938 — 
Capitalized costs2,786 5,602 
Operating/right of use assets3,325 3,394 
Pension liability608 238 
Total deferred tax liabilities$18,705 $16,663 
Net deferred taxes$13,628 $23,822 
Schedule of Reconciliation Of U.S. Federal Statutory Rate To Effective Rate for Continuing Operations The reconciliation of the U.S. federal statutory rate to the effective rate for continuing operations is as follows:
 Year Ended September 30,
 202220212020
U.S. statutory rate21.0 %21.0 %21.0 %
Stock-based stock compensation expense(2.0)%(14.1)%(14.9)%
Nondeductible compensation expense2.0 %5.5 %(6.0)%
Fair value adjustments of acquisition earn-outs(10.8)%— %— %
Other permanent items(0.4)%0.1 %(1.1)%
State taxes3.3 %3.0 %(13.2)%
Net foreign rate differential0.1 %0.5 %(0.8)%
Unrecognized tax benefits— %0.1 %5.1 %
Change in valuation allowance(3.3)%(98.9)%9.9 %
Write-down of deferred tax assets on share-based stock compensation0.5 %0.7 %(12.3)%
Write-down of deferred tax assets on net operating loss4.2 %(2.8)%(15.9)%
Other0.8 %0.2 %1.3 %
Effective rate15.4 %(84.7)%(26.9)%
Schedule of Reconciliation Unrecognized Tax Benefits The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):
 Year Ended September 30,
 202220212020
Beginning balance at October 1$143 $123 $273 
Additions based on positions related to the current year— — — 
Additions for tax positions of prior years— 20 — 
Reductions for tax positions of prior years— — (150)
Settlements— — — 
Balance at September 30$143 $143 $123