Investments - Summary of Changes in Assets Measured at Fair Value Using Significant Unobservable Inputs (Details) - USD ($)
|
3 Months Ended |
Mar. 31, 2025 |
Mar. 31, 2024 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Change in unrealized appreciation/depreciation included in earnings related to Level 3 investments still held at reporting date |
$ (1,298,384)
|
$ (2,890,296)
|
| Level 3 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Ending balance, of Level 3 Assets |
70,818,041
|
69,816,062
|
| Total realized gains, net |
925,332
|
|
| Total unrealized gains (losses) |
(1,298,384)
|
(100,000)
|
| Purchases of securities/changes to securities/non-cash conversions |
1,037,607
|
11,173,709
|
| Repayments and sales of securities |
(9,325,233)
|
(2,581,906)
|
| Ending balance, of Level 3 Assets |
62,157,363
|
78,307,865
|
| Change in unrealized appreciation/depreciation included in earnings related to Level 3 investments still held at reporting date |
(578,384)
|
(100,000)
|
| Level 3 | Caitec |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
158,454
|
139,094
|
| Level 3 | Autotality (formerly Filterworks Acquisition USA, LLC) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
58,573
|
|
| Level 3 | FCM |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
12,222
|
11,169
|
| Level 3 | Filterworks |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
14,565
|
| Level 3 | FSS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
(247,619)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
212,770
|
|
| Level 3 | GoNoodle |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
(25)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
3,601
|
3,565
|
| Level 3 | Hilton Displays |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
5,310
|
| Repayments and sales of securities |
(1,071,824)
|
|
| Level 3 | Highland |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
31,751
|
30,831
|
| Level 3 | EFINEA |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
288,235
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
16,904
|
| Level 3 | ITA |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
(875,000)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
375,000
|
388,475
|
| Level 3 | Knoa |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
|
(100,000)
|
| Level 3 | Mattison |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
5,503,056
|
| Repayments and sales of securities |
(5,572,902)
|
(1,894,470)
|
| Level 3 | MRES |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
124,575
|
3,207,545
|
| Level 3 | Microcision |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
55,357
|
|
| Repayments and sales of securities |
(55,357)
|
|
| Level 3 | Pressure Pro |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
870,000
|
|
| Total unrealized gains (losses) |
(720,000)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
22,445
|
21,515
|
| Repayments and sales of securities |
(2,625,150)
|
(687,436)
|
| Level 3 | Seybert |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
256,000
|
|
| Purchases of securities/changes to securities/non-cash conversions |
31,950
|
1,831,680
|
| Level 3 | Mobile IV Nurses |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
6,266
|
|
| Level 3 | Loan investments |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Ending balance, of Level 3 Assets |
15,037,873
|
12,417,977
|
| Total unrealized gains (losses) |
(875,000)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
533,454
|
6,030,625
|
| Repayments and sales of securities |
(5,572,902)
|
(1,894,470)
|
| Ending balance, of Level 3 Assets |
9,123,425
|
16,554,132
|
| Level 3 | Loan investments | Caitec |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
158,454
|
139,094
|
| Level 3 | Loan investments | ITA |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
(875,000)
|
|
| Purchases of securities/changes to securities/non-cash conversions |
375,000
|
388,475
|
| Level 3 | Loan investments | Mattison |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
5,503,056
|
| Repayments and sales of securities |
(5,572,902)
|
(1,894,470)
|
| Level 3 | Debt investments |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Ending balance, of Level 3 Assets |
38,043,721
|
36,861,525
|
| Purchases of securities/changes to securities/non-cash conversions |
504,153
|
4,878,539
|
| Repayments and sales of securities |
(2,796,974)
|
(687,436)
|
| Ending balance, of Level 3 Assets |
35,750,900
|
41,052,628
|
| Level 3 | Debt investments | Autotality (formerly Filterworks Acquisition USA, LLC) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
58,573
|
|
| Level 3 | Debt investments | FCM |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
12,222
|
11,169
|
| Level 3 | Debt investments | Filterworks |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
14,565
|
| Level 3 | Debt investments | FSS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
212,770
|
|
| Level 3 | Debt investments | GoNoodle |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
3,601
|
3,565
|
| Level 3 | Debt investments | Hilton Displays |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
5,310
|
| Repayments and sales of securities |
(1,071,824)
|
|
| Level 3 | Debt investments | Highland |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
31,751
|
30,831
|
| Level 3 | Debt investments | EFINEA |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
16,904
|
| Level 3 | Debt investments | MRES |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
124,575
|
2,943,000
|
| Level 3 | Debt investments | Pressure Pro |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
22,445
|
21,515
|
| Repayments and sales of securities |
(1,725,150)
|
(687,436)
|
| Level 3 | Debt investments | Seybert |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
31,950
|
1,831,680
|
| Level 3 | Debt investments | Mobile IV Nurses |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
6,266
|
|
| Level 3 | Equity investments |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Ending balance, of Level 3 Assets |
17,736,447
|
20,536,560
|
| Total realized gains, net |
$ 925,332
|
|
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Realized Investment Gains (Losses)
|
|
| Total unrealized gains (losses) |
$ (423,384)
|
$ (100,000)
|
| Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Change in unrealized appreciation/depreciation included in earnings related to Level 3 investments still held at reporting date
|
Change in unrealized appreciation/depreciation included in earnings related to Level 3 investments still held at reporting date
|
| Purchases of securities/changes to securities/non-cash conversions |
|
$ 264,545
|
| Repayments and sales of securities |
$ (955,357)
|
|
| Ending balance, of Level 3 Assets |
17,283,038
|
20,701,105
|
| Level 3 | Equity investments | FSS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
(247,619)
|
|
| Level 3 | Equity investments | GoNoodle |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
(25)
|
|
| Level 3 | Equity investments | EFINEA |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
288,235
|
|
| Level 3 | Equity investments | Knoa |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
|
(100,000)
|
| Level 3 | Equity investments | MRES |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Purchases of securities/changes to securities/non-cash conversions |
|
$ 264,545
|
| Level 3 | Equity investments | Microcision |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
55,357
|
|
| Repayments and sales of securities |
(55,357)
|
|
| Level 3 | Equity investments | Pressure Pro |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total realized gains, net |
870,000
|
|
| Total unrealized gains (losses) |
(720,000)
|
|
| Repayments and sales of securities |
(900,000)
|
|
| Level 3 | Equity investments | Seybert |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total unrealized gains (losses) |
$ 256,000
|
|