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General and Administrative Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
General and Administrative Expense [Abstract]          
Professional fees $ 645 $ 519 $ 1,171 $ 1,152 $ 1,778
Transfer agent expense 279 303 547 594 1,124
Dues and subscriptions 44 80 473 615 791
Valuation expense 252 212 425 391 821
Director fees and expenses 179 161 348 315 632
Insurance expense 169 254 336 505 833
Accounting and administrative costs 158 145 324 302 524
Printing and marketing expense 269 28 274 33 708
Other expenses 79 10 131 27 67
General and administrative $ 2,074 $ 1,712 $ 4,029 $ 3,934 $ 7,278