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SBA-GUARANTEED DEBENTURES - Schedule of SBA-guaranteed Debentures, Net of Prepaid Loan Fees (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]                  
SBA-guaranteed debentures $ 313,600,000 $ 250,000,000 $ 176,500,000 $ 161,000,000 $ 150,000,000 $ 90,000,000 $ 65,000,000 $ 65,000,000 $ 16,250,000
SBA-guaranteed Debentures                  
Debt Instrument [Line Items]                  
SBA debentures payable 313,600,000 250,000,000              
Prepaid loan structure fees (5,704,805) (5,384,097)              
SBA-guaranteed debentures $ 307,895,195 $ 244,615,903