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RELATED-PARTY TRANSACTIONS - Additional Information (Details) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Feb. 20, 2020 | Mar. 31, 2022 USD ($) executiveOfficer | Mar. 31, 2021 USD ($)
Related Party Transaction [Line Items] |  |  |
Number of executive officers serving as directors and executive officers of adviser and administrator | executiveOfficer |  | 2 |
Pre-Incentive Fee FFO |  | 100.00% |
Pre-Incentive Fee, exceeded |  | 2.1875% |
Pre-Incentive Fee, exceeded, annual |  | 8.75% |
Pre-Incentive Fee |  | 20.00% |
Cumulative realized capital gains |  | 15.00% |
Notice period for termination of agreement without cause |  | 120 days |
Termination agreement, percentage of independent directors |  | 66.67% |
Multiplier |  | 300.00% |
Period prior to termination |  | 24 months |
Financing fees |  | $ 94 | $ 17
Selling commissions and dealer-manager fees |  | $ 3,178 | 1,144
Prior Advisory Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Management fee |  | 0.50% |
Base management fee, quarterly |  | 0.125% |
Hurdle rate, quarterly |  | 1.75% |
Hurdle rate, annual |  | 7.00% |
Current Advisory Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Management fee |  | 0.60% |
Base management fee, quarterly |  | 0.15% |
Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 0.14% |
Financing fees |  | $ 94 | 17
Preferred Stock | Series C Preferred Stock |  |  |
Related Party Transaction [Line Items] |  |  |
Selling commission fee | 6.00% |  |
Dealer-manager fee | 3.00% |  |
Selling commissions and dealer-manager fees |  | $ 3,200 | $ 1,100
Gladstone Securities | Minimum | Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 0.50% |
Gladstone Securities | Maximum | Gladstone Securities |  |  |
Related Party Transaction [Line Items] |  |  |
Financing fee |  | 1.00% |

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- Definition Amount to be paid to adviser in percentage of pre incentive fee condition one. + References No definition available. + Details
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- Definition Amount to be paid to adviser in percentage of pre incentive fee condition two. + References No definition available. + Details
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- Definition Annualized incentive fee per advisory agreement. + References No definition available. + Details
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- Definition Dealer-Manager Fee Percent Of Gross Proceeds Limit + References No definition available. + Details
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- Definition Financing Fee + References No definition available. + Details
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- Definition Incentive fee per advisory agreement. + References No definition available. + Details
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