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General And Administrative Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
General and Administrative Expense [Abstract]      
Professional fees $ 526 $ 633 $ 1,778
Dues and subscriptions 429 535 791
Transfer agent expense 268 291 1,124
Valuation expense 173 179 821
Director fees and expenses 169 154 632
Insurance expense 167 251 833
Accounting and administrative costs 166 157 524
Printing and marketing expense 5 5 708
Other expenses 52 17 67
General and administrative $ 1,955 $ 2,222 $ 7,278