XML 65 R52.htm IDEA: XBRL DOCUMENT v3.22.4
Note 10 - Related-party Transactions (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Overhead Charged Related to Office Expenses [Member] | General and Administrative Expense [Member]    
Related Party Transaction, Amounts of Transaction $ 256 $ 267
Reimbursable Payroll Expense [Member] | General and Administrative Expense [Member]    
Related Party Transaction, Amounts of Transaction 8 7
Firms in Which Two Directors Were Principals or Partners [Member]    
Related Party Transaction, Amounts of Transaction $ 0 $ 604