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Fair Value of Financial Assets and Liabilities (Tables) | 6 Months Ended
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Mar. 31, 2023
Fair Value Disclosures |
Summary of assets and liabilities at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, 2023 | ​ | ​ | As of September 30, 2022 | ​ | ​ | ​ | ​
​ | ​ | Carrying Amount | ​ | ​ | Fair Value | ​ | ​ | Carrying Amount | ​ | ​ | Fair Value | ​ | Fair Value Level | ​ | Reference
​ | ​ | (Amounts in thousands) | ​ | ​ | ​ | ​
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents | $ | 13,312 | ​ | $ | 13,312 | ​ | $ | 23,982 | ​ | $ | 23,982 | ​ | 1 | ​ | Condensed Consolidated Balance Sheets
Accounts and long-term receivable* | ​ | 15,442 | ​ | ​ | 15,442 | ​ | ​ | 16,328 | ​ | ​ | 16,328 | ​ | 3 | ​ | Note 6
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accounts payable and accrued expenses and other long-term liabilities* | ​ | 4,518 | ​ | ​ | 4,518 | ​ | ​ | 4,622 | ​ | ​ | 4,622 | ​ | 3 | ​ | Note 9
Line of Credit | ​ | 1,338 | ​ | ​ | 1,338 | ​ | ​ | 3,124 | ​ | ​ | 3,124 | ​ | 2 | ​ | Note 10
Notes payable | ​ | 438 | ​ | ​ | 438 | ​ | ​ | 876 | ​ | ​ | 876 | ​ | 3 | ​ | Note 10
​ *Original maturity over one year ​

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