Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cost of investment	$ 1,153,584	$ 797,856	[1],[2]
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	200,000,000	200,000,000
Common stock, issued	34,960,672	27,229,541
Common stock, outstanding	34,960,672	27,229,541
August 2026 Notes
Unamortized deferred financing costs	$ 2,103	$ 2,679
2025 Notes
Unamortized deferred financing costs	3,948	3,616
December 2026 Notes
Unamortized deferred financing costs	1,474	1,842
Convertible Notes
Unamortized deferred financing costs	1,882	2,515
Control Investments
Cost of investment	43,375	38,994
Affiliate Investments
Cost of investment	28,580	41,609
Non-Control / Non-Affiliate Investments
Cost of investment	$ 1,081,629	$ 717,253

[1] All debt investments are income producing unless otherwise noted. All equity and warrant investments are non-income producing unless otherwise noted. Equipment financed under our equipment financing investments relates to operational equipment essential to revenue production for the portfolio company in the industry noted.

[2] All portfolio companies are located in North America. As of December 31, 2021, the Company had three foreign domiciled portfolio companies, which are based in Canada and, in total, represent 13.5% of total net asset value based on fair value. The Company generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”). These investments are generally subject to certain limitations on resale and may be deemed to be “restricted securities” under the Securities Act.