Stock-based Compensation and Equity Grants - Stock-based Compensation Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation expense	$ 1,898	$ 1,922
December 15, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Minimum average price (in dollars per share)	$ 25.65
January, 27 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Minimum average price (in dollars per share)	$ 33.21
Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units issued (in shares)	316,863	211,228
Term	3 years
Performance Based Restricted Stock Awards Revenue \| December 15, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term	3 years
Calculated fair value (in dollars per share)	$ 3.82
Performance Based Restricted Stock Awards Revenue \| January, 27 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term	3 years
Calculated fair value (in dollars per share)	$ 3.51
Performance Based Restricted Stock Awards Stock Price \| December 15, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term	3 years
Calculated fair value (in dollars per share)	$ 5.36
Performance Based Restricted Stock Awards Stock Price \| January, 27 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term	3 years
Calculated fair value (in dollars per share)	$ 2.92
DLH Employees
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unrecognized expense for DLH employees	$ 4,417	$ 7,107
Weighted average period for recognition of compensation expense	2 years 11 months 23 days
DLH Employees \| Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation expense	$ 1,280	$ 1,204
Non-employee Directors \| Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stocks vested in period (in shares)	61,525	50,367
Non-employee Directors \| Selling, General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation expense	$ 618	$ 718
NEO \| Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units issued (in shares)	169,544
Volatility rate	50.00%
NEO \| Performance Shares
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units issued (in shares)	84,773
NEO \| Service Based Restricted Stock Units
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of restricted stock units issued (in shares)	84,771

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Name Accounting Standards Codification
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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Per share or unit weighted-average intrinsic value of award vested under share-based payment arrangement. Excludes share and unit options.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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Net number of non-option equity instruments granted to participants.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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