NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)	3 Months Ended		6 Months Ended		12 Months Ended									138 Months Ended
	Jun. 30, 2023 USD ($) shares	Mar. 31, 2023 USD ($) shares	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares	Dec. 31, 2012 USD ($) shares	Jun. 30, 2023 USD ($) shares
Nature of Operation And Significant Accounting Policies [Line Items]
Issuance of common stock, net of offering costs (shares) | shares	2,309,521	581,614			149,174	31,592	354,257	3,177,936	7,931	3,465,922	380,936	63,998	12,035,023	22,557,904
Gross Proceeds	$ 32,553,697	$ 8,418,160			$ 2,070,935	$ 449,515	$ 5,023,843	$ 45,862,995	$ 93,737	$ 48,741,406	$ 5,485,780	$ 899,964	$ 180,522,093	$ 330,122,125
Proceeds for offering expenses and sales load fees														10,590,466
Offering expenses reimbursements														672,917
Proceeds from the issuance of common stock			$ 41,448,945	$ 420,004										320,204,576
Credit Facility payable	$ 170,229,321		$ 170,229,321		197,685,281									$ 170,229,321
Asset coverage ratio	214		214											214
Cash balance	$ 193,166		$ 193,166											$ 193,166
Cash equivalents and carried at cost	14,731,216		14,731,216											14,731,216
Cash held in foreign currency	389		389											389
Cash held in foreign currency at acquisition cost			388
SBIC Subsidiary | SBA-guaranteed Debentures
Nature of Operation And Significant Accounting Policies [Line Items]
Maximum borrowing capacity	150,000,000		150,000,000											150,000,000
Regulatory capital	75,000,000		75,000,000		75,000,000									75,000,000
Credit Facility payable	150,000,000		150,000,000		150,000,000									150,000,000
SBIC II Subsidiary | SBA-guaranteed Debentures
Nature of Operation And Significant Accounting Policies [Line Items]
Maximum borrowing capacity	175,000,000		175,000,000											175,000,000
Regulatory capital	87,500,000		87,500,000		$ 87,500,000									87,500,000
Credit Facility payable	$ 163,600,000		$ 163,600,000											$ 163,600,000