Consolidated Statements of Assets and Liabilities - USD ($)	Feb. 28, 2023	Feb. 28, 2022
Investments at fair value
Non-control/Non-affiliate investments (amortized cost of $819,966,208 and $654,965,044, respectively)	$ 828,028,800	$ 668,358,516
Affiliate investments (amortized cost of $25,722,320 and $46,224,927, respectively)	28,305,871	48,234,124
Control investments (amortized cost of $120,800,829 and $95,058,356, respectively)	116,255,582	100,974,715
Total investments at fair value (amortized cost of $966,489,357 and $796,248,327, respectively)	972,590,253	817,567,355
Cash and cash equivalents	65,746,494	47,257,801
Cash and cash equivalents, reserve accounts	30,329,779	5,612,541
Interest receivable (net of reserve of $2,217,300 and $0, respectively)	8,159,951	5,093,561
Due from affiliate (See Note 7)		90,968
Management fee receivable	363,809	362,549
Other assets	531,337	254,980
Current tax receivable	436,551
Total assets	1,078,158,174	876,239,755
LIABILITIES
Revolving credit facility	32,500,000	12,500,000
Base management and incentive fees payable	12,114,878	12,947,025
Deferred tax liability	2,816,572	1,249,015
Accounts payable and accrued expenses	1,464,343	799,058
Current income tax payable		2,820,036
Interest and debt fees payable	3,652,936	2,801,621
Directors fees payable	14,932	70,000
Due to manager	10,935	263,814
Excise tax payable		630,183
Total liabilities	731,200,132	520,459,232
Commitments and contingencies (See Note 9)
NET ASSETS
Common stock, par value $0.001, 100,000,000 common shares authorized, 11,890,500 and 12,131,350 common shares issued and outstanding, respectively	11,891	12,131
Capital in excess of par value	321,893,806	328,062,246
Total distributable earnings	25,052,345	27,706,146
Total net assets	346,958,042	355,780,523
Total liabilities and net assets	$ 1,078,158,174	$ 876,239,755
NET ASSET VALUE PER SHARE (in Dollars per share)	$ 29.18	$ 29.33
Revolving credit facility
LIABILITIES
Deferred debt financing costs	$ (1,344,005)	$ (1,191,115)
SBA debentures payable
LIABILITIES
Deferred debt financing costs	(4,923,488)	(4,344,983)
Notes payable	202,000,000	185,000,000
7.00% Notes Payable 2025
LIABILITIES
Deferred debt financing costs	(40,118)
Notes payable	12,000,000
Discount on notes payable	(304,946)
7.25% Notes Payable 2025
LIABILITIES
Deferred debt financing costs		(1,078,201)
Notes payable		43,125,000
7.75% Notes Payable 2025
LIABILITIES
Deferred debt financing costs	(129,528)	(184,375)
Notes payable	5,000,000	5,000,000
4.375% Notes Payable 2026
LIABILITIES
Deferred debt financing costs	(2,552,924)	(3,395,435)
Notes payable	175,000,000	175,000,000
Premium on 4.375% notes payable 2026	830,824	1,086,013
4.35% Notes Payable 2027
LIABILITIES
Deferred debt financing costs	(1,378,515)	(1,722,908)
Notes payable	75,000,000	75,000,000
Discount on notes payable	(408,932)	(499,263)
6.25% Notes Payable 2027
LIABILITIES
Deferred debt financing costs	(344,949)	(416,253)
Notes payable	15,000,000	15,000,000
6.00% Notes Payable 2027
LIABILITIES
Deferred debt financing costs	(2,926,637)
Notes payable	105,500,000
Discount on notes payable	(159,334)
8.00% Notes Payable 2027
LIABILITIES
Deferred debt financing costs	(1,622,376)
Notes payable	46,000,000
8.125% Notes Payable 2027
LIABILITIES
Deferred debt financing costs	(1,944,536)
Notes payable	$ 60,375,000