Long-Term Debt - Additional Information - (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 17, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022
Debt Instrument [Line Items]
Interest expense on long term debt and finance lease liabilities		$ 200	$ 100	$ 300	$ 200
Debt covenant description				The Revolver has a floating per annum rate of interest equal to the Prime Rate, adjusted daily. Under the LSA, we are required to pay a non-utilization fee equal to 0.125% of any unused portion of the Revolver in excess of any letter of credit obligations. As of June 30, 2023, no amounts were borrowed against the Revolver. The Term Loan and Revolver are secured by a first priority lien on substantially all of the Borrowers’ assets (other than certain customary excluded assets) and the LSA contains customary events of default, representations and warranties, and covenants that restrict the Borrowers’ ability to, among other things, incur additional indebtedness, other than permitted indebtedness, enter into mergers or acquisitions, sell or otherwise dispose of assets, or pay dividends, subject to customary exceptions. The LSA additionally contains financial covenants such that, as of the end of each of their fiscal quarters, beginning March 31, 2023, the Borrowers must maintain (i) a ratio of consolidated debt owed to Lender to consolidated EBITDA (as defined in the LSA) for such fiscal quarter, of not greater than 1.50 to 1.00, through December 31, 2024, based on a building four quarters (as described in the LSA), and then 1.00 to 1.00 each fiscal quarter thereafter, (ii) a ratio of (a) the total for such fiscal quarter of EBITDAR (as defined in the LSA) minus the sum of all income taxes paid in cash plus cash dividends/distributions plus maintenance Capital Expenditures (as defined in the LSA) plus management fees paid in cash, to (b) the sum for such fiscal quarter of (1) Interest Charges (as defined in the LSA) plus (2) required payments of principal on Debt (as defined in the LSA) (including the Term Loan, but excluding the Revolver) plus (3) operating lease/rent expense, of not less than 1.30 to 1.00 based on a building four quarters (as described in the LSA), and (iii) a consolidated working capital of current assets (excluding related party receivables and prepaid expenses) minus current liabilities of at least $35.0 million.
Finance leases		$ 130		$ 130		$ 147
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]		us-gaap:DebtAndCapitalLeaseObligations		us-gaap:DebtAndCapitalLeaseObligations		us-gaap:DebtAndCapitalLeaseObligations
Loan and Security Agreement | UMB Bank, N.A. | Revolving Loan Facility
Debt Instrument [Line Items]
Loan facility available	$ 8,000
Loan facility maturity date	Jan. 17, 2024
Loan and Security Agreement | UMB Bank, N.A. | Term Loan
Debt Instrument [Line Items]
Debt instruments carrying value	$ 12,000
Debt instrument maturity date	Jan. 17, 2028
Interest rate		6.38%		6.38%