NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)	3 Months Ended	12 Months Ended											154 Months Ended	159 Months Ended
	Mar. 31, 2025 USD ($) segment shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) 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	Mar. 31, 2025 USD ($) shares	Mar. 31, 2025 USD ($) shares
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
Issuance of common stock, net of offering costs (shares) | shares	656,085	3,355,476	4,458,873	149,174	31,592	354,257	3,177,936	7,931	3,465,922	380,936	63,998	12,035,023	28,137,203	28,137,203
Gross Proceeds	$ 9,256,982	$ 46,494,756	$ 62,871,349	$ 2,070,935	$ 449,515	$ 5,023,843	$ 45,862,995	$ 93,737	$ 48,741,406	$ 5,485,780	$ 899,964	$ 180,522,093	$ 407,773,355	$ 407,773,355
Payments of offering expenses and underwriting fees													12,496,575
Offering expenses reimbursements													672,917
Proceeds from the issuance of common stock	9,256,982												395,949,697
Credit Facility payable	$ 219,057,554	172,314,315											$ 219,057,554	$ 219,057,554
Asset coverage ratio	216												216	216
Cash balance	$ 106,289												$ 106,289	$ 106,289
Cash equivalents and carried at cost	10,782,532												10,782,532	10,782,532
Cash held in foreign currency	90												90	90
Cash held in foreign currency at acquisition cost	90
Offering Expenses	$ 179,988	435,390	$ 247,701	$ 530,842	$ 53,327	$ 84,592	$ 559,261		$ 307,021	$ 29,904		$ 835,500		3,263,526
Number of operating segments | segment	1
Number of reportable segments | segment	1
SBA-guaranteed Debentures
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
Debt securities maturity	10 years
SBA-guaranteed Debentures | Level 3
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
Estimated fair values	$ 289,802,340												289,802,340	289,802,340
2026 Notes | Level 2
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
Estimated fair values	97,814,000												97,814,000	97,814,000
SBIC Subsidiaries | SBA-guaranteed Debentures
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
Maximum borrowing capacity	350,000,000												350,000,000	350,000,000
SBIC Subsidiary | SBA-guaranteed Debentures
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
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	133,750,000	150,000,000											133,750,000	133,750,000
SBIC II Subsidiary | SBA-guaranteed Debentures
NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES
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	$ 175,000,000	$ 175,000,000											$ 175,000,000	$ 175,000,000