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Investments - Schedule of Transactions with Affiliated Investments and Controlled Investments (Details) - USD ($) | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Affiliated Investments [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | $ 14,750,785 |  | $ 37,289,617
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 25,142,848 |  | (25,481,801)
Transfers In/(Out) of Controlled | [1],[2] |  |  | (196,411)
Unrealized Gain/(Loss) | [1],[2] | 5,804,639 |  | 5,130,836
Realized Gain/(Loss) | [1],[2] | (10,316,867) |  | (1,991,456)
Fair value as of ending | [1],[2] | 35,381,405 |  | 14,750,785
Earned Income | [1],[2] | 868,640 |  | 1,017,275
Fee/Other Income | [1],[2] |  |  |
Controlled Investments [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 70,931,647 |  | 63,640,043
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 52,626,792 |  | 15,189,600
Transfers In/(Out) of Controlled | [1],[2] |  |  | (9,153,693)
Unrealized Gain/(Loss) | [1],[2] | (1,960,755) |  | (7,287,134)
Realized Gain/(Loss) | [1],[2] | 13,230 |  | 8,542,831
Fair value as of ending | [1],[2] | 121,610,914 |  | 70,931,647
Earned Income | [1],[2] | 7,477,155 |  | 6,696,176
Fee/Other Income | [1],[2] | 719,688 |  |
Advocates for Disabled Vets, LLC (dba Reps for Vets) [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 8,769,172 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 28,042 |  |
Realized Gain/(Loss) | [1],[2] | 1,299 |  |
Fair value as of ending | [1],[2] | 8,798,513 |  |
Earned Income | [1],[2] | 614,409 |  |
Fee/Other Income | [1],[2] |  |  |
Advocates for Disabled Vets, LLC (dba Reps for Vets) [Member] | Affiliated Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 3,375,000 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (15,489) |  |
Fair value as of ending | [1],[2] | 3,359,511 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
Black Angus Steakhouses, LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 1,459,249
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 7,767,533 |  | (1,459,249)
Realized Gain/(Loss) | [1],[2] | (7,767,533) |  |
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
Black Angus Steakhouses, LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Delayed Draw Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 751,207 |  | 875,749
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | (243,889) |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 124,542 |  | (124,542)
Realized Gain/(Loss) | [1],[2] | (631,860) |  |
Fair value as of ending | [1],[2] |  |  | 751,207
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
Black Angus Steakhouses, LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Super Priority DDTL [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 1,647,776 |  | 1,920,960
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 273,184 |  | (273,184)
Realized Gain/(Loss) | [1],[2] | (1,920,960) |  |
Fair value as of ending | [1],[2] |  |  | 1,647,776
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
FST Holdings Parent, LLC [Member] | Affiliated Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 12,351,802 |  | 10,000,003
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 8,289 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (1,399,350) |  | 2,351,799
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 10,960,741 |  | 12,351,802
Earned Income | [1],[2] | 254,231 |  | 199,388
Fee/Other Income | [1],[2] |  |  |
MB Precision Investment Holdings LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 6,694,041 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (297,667) |  |
Realized Gain/(Loss) | [1],[2] | 2,187 |  |
Fair value as of ending | [1],[2] | 6,398,561 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
MB Precision Investment Holdings LLC [Member] | Affiliated Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 3,167,157 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (441,749) |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 2,725,408 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
MB Precision Investment Holdings LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Delayed Draw Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 468,621 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 21,685 |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 490,306 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
MB Precision Investment Holdings LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Revolver [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 2,077,048 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (101,701) |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 1,975,347 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
MB Precision Investment Holdings LLC [Member] | Affiliated Investments [Member] | Warrants [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 827,409 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (154,391) |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 673,018 |  |
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] |  |  |
ECC Capital Corp [Member] | Controlled Investments [Member] | Senior Secured First Lien Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 7,422,012 |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | (425,000) |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 6,997,012 |  | 7,422,012
Earned Income | [1],[2] | 716,278 |  |
Fee/Other Income | [1],[2] |  |  |
ECC Capital Corp [Member] | Controlled Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 4,872,000 |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | 4,257,002
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | 1,764,000 |  | 614,998
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 6,636,000 |  | 4,872,000
Earned Income | [1],[2] |  |  | 33,280
Fee/Other Income |  | 197,201 |  |
ECC Capital Corp [Member] | Controlled Investments [Member] | Senior Secured Promissory Note [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 7,422,012 |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | 7,422,012
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] |  |  | 7,422,012
Earned Income | [1],[2] |  |  | 962,959
FlexFIN, LLC [Member] | Controlled Investments [Member] | Equity Interest [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 36,683,046 |  | 38,870,711
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 497,716 |  | (2,187,665)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 37,180,762 |  | 36,683,046
Earned Income | [1],[2] | 5,024,928 |  | 3,972,352
Fee/Other Income | [1],[2] |  |  |
NSG Captive, Inc. [Member] | Controlled Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 101,000 |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 49,154,076 |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (785,536) |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 48,469,540 |  | 101,000
Earned Income | [1],[2] |  |  |
Fee/Other Income | [1],[2] | 522,487 |  |
NVTN LLC [Member] | Controlled Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | 11,900,000
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  | (11,900,000)
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  |
NVTN LLC [Member] | Controlled Investments [Member] | Senior Secured First Lien Delayed Draw Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 5,500,000 |  | 7,214,856
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] | 3,400,000 |  | (1,693,577)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (13,230) |  | (21,279)
Realized Gain/(Loss) | [1],[2] | 13,230 |  |
Fair value as of ending | [1],[2] | 8,900,000 |  | 5,500,000
Earned Income | [1],[2] | 922,828 |  | 1,035,741
Fee/Other Income | [1],[2] |  |  |
NVTN LLC [Member] | Controlled Investments [Member] | Senior Secured First Lien Term Loan B [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | 16,353,589 |  | 5,037,547
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] | (2,925,989) |  | 11,316,042
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] | 13,427,600 |  | 16,353,589
Earned Income |  | 813,121 | [1],[2] | 423,013
Fee/Other Income | [1],[2] |  |  |
1888 Industrial Services, LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan C [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 751,479
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | (1,096,561)
Transfers In/(Out) of Controlled | [1],[2] |  |  | (196,411)
Unrealized Gain/(Loss) | [1],[2] |  |  | 439,778
Realized Gain/(Loss) | [1],[2] |  |  | 101,715
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  | 123,326
1888 Industrial Services, LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan A [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  |
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  | 9,473,068
Realized Gain/(Loss) | [1],[2] |  |  | (9,473,068)
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  |
1888 Industrial Services, LLC [Member] | Affiliated Investments [Member] | Revolving Credit Facility [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 4,632,177
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | (5,112,074)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  | 479,897
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  | 158,704
Maritime Wireless Holdings LLC [Member] | Affiliated Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 10,150,000
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | (11,900,000)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  | (5,150,000)
Realized Gain/(Loss) | [1],[2] |  |  | 6,900,000
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  |
Maritime Wireless Holdings LLC [Member] | Affiliated Investments [Member] | Senior Secured First Lien Term Loan B [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 7,500,000
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | (7,373,166)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  | (126,834)
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  | 535,857
Kemmerer Operations, LLC [Member] | Controlled Investments [Member] | Senior Secured First Lien Term Loan [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 3,383,877
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | 5,769,816
Transfers In/(Out) of Controlled | [1],[2] |  |  | (9,153,693)
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  | 268,831
Kemmerer Operations, LLC [Member] | Controlled Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] |  |  | 9,133,052
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | (10,378,988)
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  | (7,296,895)
Realized Gain/(Loss) | [1],[2] |  |  | 8,542,831
Fair value as of ending | [1],[2] |  |  |
Earned Income | [1],[2] |  |  |
NSG Captive, Inc [Member] | Controlled Investments [Member] | Equity type of investment [Member] |  |  |  |
Schedule of Transactions with Affiliated Investments and Controlled Investments [Line Items] |  |  |  |
Fair value as of beginning | [1],[2] | $ 101,000 |  |
Purchases/(Sales) of or Advances/ (Distributions) | [1],[2] |  |  | 101,000
Transfers In/(Out) of Controlled | [1],[2] |  |  |
Unrealized Gain/(Loss) | [1],[2] |  |  |
Realized Gain/(Loss) | [1],[2] |  |  |
Fair value as of ending | [1],[2] |  |  | 101,000
Earned Income | [1],[2] |  |  |
[1] | Securities with a zero value at the beginning and end of the period, and those that had no transaction activity were excluded from the roll forward.
[2] | The par amount and additional detail are shown in the Consolidated Schedules of Investments.

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