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Income Taxes (Tables) | 12 Months Ended
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Sep. 30, 2021
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,
|  | 2021 |  | 2020 |  | 2019
|  | (in thousands)
Current tax provision (benefit): |  |  |  |  |  |
U.S. Federal |  | $ | — |  |  | $ | — |  |  | $ | — |
State |  | 293 |  |  | 382 |  |  | 453 |
Foreign |  | 847 |  |  | 313 |  |  | 611 |
|  | 1,140 |  |  | 695 |  |  | 1,064 |
Deferred tax provision (benefit): |  |  |  |  |  |
U.S. Federal |  | (23,315) |  |  | 74 |  |  | 103 |
State |  | (1,252) |  |  | (27) |  |  | (31) |
Foreign |  | 57 |  |  | 59 |  |  | 64 |
|  | (24,510) |  |  | 106 |  |  | 136 |
Total (benefit) provision |  | $ | (23,370) |  |  | $ | 801 |  |  | $ | 1,200 |
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,
|  | 2021 |  | 2020
|  | (in thousands)
Deferred tax assets: |  |  |  |
Net operating losses—Foreign |  | $ | 13,593 |  |  | $ | 12,709 |
Net operating losses—U.S. |  | 31,456 |  |  | 35,126 |
Accrued vacation and bonus |  | 678 |  |  | 571 |
Inventory capitalization |  | 219 |  |  | 54 |
Allowance for doubtful accounts |  | 96 |  |  | 65 |
Stock compensation expense |  | 1,415 |  |  | 1,804 |
Operating lease assets |  | 3,605 |  |  | 2,236 |
Depreciation |  | 2,339 |  |  | 1,266 |
Other |  | 897 |  |  | 893 |
Total deferred tax assets before valuation allowance |  | 54,298 |  |  | 54,724 |
Less: valuation allowance |  | (13,813) |  |  | (41,788) |
Net deferred tax assets |  | 40,485 |  |  | 12,936 |
Deferred tax liabilities: |  |  |  |
Amortization of intangibles |  | 107 |  |  | 291 |
Amortization of goodwill |  | 7,322 |  |  | 6,666 |
Capitalized costs |  | 5,602 |  |  | 4,470 |
Operating lease liabilities |  | 3,394 |  |  | 2,059 |
Pension liability |  | 238 |  |  | 138 |
Total deferred tax liabilities |  | $ | 16,663 |  |  | $ | 13,624 |
Net deferred taxes |  | $ | 23,822 |  |  | $ | (688) |
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,
|  | 2021 |  | 2020 |  | 2019
U.S. statutory rate |  | 21.0 | % |  | 21.0 | % |  | 21.0 | %
Stock-based stock compensation expense |  | (14.1) | % |  | (14.9) | % |  | (2.0) | %
Nondeductible compensation expense |  | 5.5 | % |  | (6.0) | % |  | (0.6) | %
Other permanent items |  | 0.1 | % |  | (1.1) | % |  | (4.2) | %
State taxes |  | 3.0 | % |  | (13.2) | % |  | (0.4) | %
Net foreign rate differential |  | 0.5 | % |  | (0.8) | % |  | (0.6) | %
Unrecognized tax benefits |  | 0.1 | % |  | 5.1 | % |  | (1.5) | %
Change in valuation allowance |  | (98.9) | % |  | 9.9 | % |  | (22.5) | %
Write-down of deferred tax assets on share-based stock compensation |  | 0.7 | % |  | (12.3) | % |  | (7.9) | %
Write-down of deferred tax assets on net operating loss |  | (2.8) | % |  | (15.9) | % |  | 10.6 | %
Other |  | 0.2 | % |  | 1.3 | % |  | 1.5 | %
Effective rate |  | (84.7) | % |  | (26.9) | % |  | (6.6) | %
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,
|  | 2021 |  | 2020 |  | 2019
Beginning balance at October 1 |  | $ | 123 |  |  | $ | 273 |  |  | $ | — |
Additions based on positions related to the current year |  | 20 |  |  | — |  |  | — |
Additions for tax positions of prior years |  | — |  |  | — |  |  | 273 |
Reductions for tax positions of prior years |  | — |  |  | (150) |  |  | — |
Settlements |  | — |  |  | — |  |  | — |
Balance at September 30 |  | $ | 143 |  |  | $ | 123 |  |  | $ | 273 |

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