Equity - Common Stock Offerings (Details) - USD ($) $ / shares in Units, $ in Thousands									1 Months Ended			3 Months Ended			6 Months Ended		109 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Dec. 30, 2022	Sep. 30, 2022	Aug. 31, 2022	Aug. 09, 2022	Jun. 30, 2022	Mar. 31, 2022	Aug. 31, 2022	Aug. 31, 2018	Oct. 31, 2017	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Distributions reinvested in common stock (in shares)	50,000	49,000	66,000	46,000			37,000	26,000
Common stock issued (in shares)					411,807	3,750,000			4,161,807	200,000	1,594,007						34,999,352
Number of Shares of Common Stock Issued (in shares)													4,337,000		99,000
Distributions from distributable earnings	$ 553	$ 566	$ 654	$ 479			$ 452	$ 426				$ 553		$ 452	$ 1,119	$ 878
Gross Proceeds Raised					$ 5,662	$ 51,563											$ 488,100
Gross Proceeds Raised													$ 59,236		1,119
Underwriting Sales Load		0	$ 0	0	(170)	(1,547)	0	0					(1,717)		0
Offering Expenses		$ 0		$ 0	$ 0	$ (177)	$ 0	$ 0					$ (177)		$ 0
Gross Offering Price (in dollars per share)	$ 11.19	$ 11.48	$ 9.91	$ 10.32	$ 13.75	$ 13.75	$ 12.10	$ 16.59	$ 13.75			$ 11.19	$ 11.48	$ 12.10	$ 11.19	$ 12.10	$ 11.48
At the Market Offerings
Class of Stock [Line Items]
Sale of Stock Available for Issuance Amount	$ 50,000											$ 50,000			$ 50,000			$ 50,000
August 2022
Class of Stock [Line Items]
Gross Proceeds Raised																	$ 55,300