RELATED-PARTY TRANSACTIONS - Schedule of the Total Selling Commissions and Dealer-Manager Fees Paid (Details) - Selling Commissions and Dealer Management Fees - Gladstone Securities - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2025 |
Mar. 31, 2024 |
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| Related Party Transaction [Line Items] | ||
| Total due to related parties | $ 0 | $ 28 |
| Series E Preferred Stock | Preferred Stock | ||
| Related Party Transaction [Line Items] | ||
| Total due to related parties | $ 0 | $ 28 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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