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Stockholders' Equity - Additional Information (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Sep. 30, 2022
Class Of Stock [Line Items] |  |  |
Treasury Stock | 646,355 |  | 620,971
Repurchase of common stock | 25,384 | 65,668 |
Payment for repurchase of common stock | $ 639,000 | $ 2,084,000 |
Payment for repurchase of common stock | $ 639,000 | $ 2,100,000 |
Series E Convertible Preferred Stock |  |  |
Class Of Stock [Line Items] |  |  |
Preferred stock, outstanding | 47,840 |  | 47,840
Preferred stock, issued | 47,840 |  | 47,840

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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 + Details
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