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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Cost/Amortized Cost | $ 584,586 |  | $ 652,217
Common stock, par value | $ 0.01 |  | $ 0.01
Common stock, authorized | 20,000,000 |  | 20,000,000
Common stock, issued | 9,938,935 |  | 9,916,856
Common stock, outstanding | 9,480,362 | [1],[2] | 9,581,536
Non-controlled/Non-affiliated Investments |  |  |
Cost/Amortized Cost | $ 454,095 |  | $ 518,699
Non-controlled Affiliated Investments |  |  |
Cost/Amortized Cost | 72,449 |  | 75,196
Controlled Affiliated Investments |  |  |
Cost/Amortized Cost | 58,042 |  | 58,322
Great Lakes Portman Ridge Funding LLC Revolving Credit Facility |  |  |
Deferred financing costs, net | 858 |  | 1,107
2018-2 Secured Notes |  |  |
Debt instruments, net of discount | 855 |  | 1,226
4.875% Notes Due 2026 |  |  |
Debt instruments, net of discount | 1,346 |  | 1,704
Deferred financing costs, net | $ 628 |  | $ 818
[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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