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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Cost/Amortized Cost | $ 543,601 |  | $ 540,282
Common stock, par value | $ 0.01 |  | $ 0.01
Common stock, authorized | 20,000,000 |  | 20,000,000
Common stock, issued | 9,943,385 |  | 9,943,385
Common stock, outstanding | 9,332,117 | [1],[2] | 9,383,132
Non-controlled/Non-affiliated Investments |  |  |
Cost/Amortized Cost | $ 436,272 |  | $ 426,630
Non-controlled Affiliated Investments |  |  |
Cost/Amortized Cost | 50,672 |  | 55,611
Controlled Affiliated Investments |  |  |
Cost/Amortized Cost | 56,657 |  | 58,041
Great Lakes Portman Ridge Funding LLC Revolving Credit Facility |  |  |
Deferred financing costs, net | 692 |  | 775
2018-2 Secured Notes |  |  |
Debt instruments, net of discount | 500 |  | 712
4.875% Notes Due 2026 |  |  |
Debt instruments, net of discount | 1,100 |  | 1,225
Deferred financing costs, net | $ 496 |  | $ 561
[1] | Refer to Note 9 "Stockholders' Equity" for additional information on changes in components of Stockholders' Equity
[2] | Totals may not sum due to rounding.

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