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Note 10 - Notes Receivable (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Notes Receivable, Related Parties   $ 5,300  
Financing Receivable, after Allowance for Credit Loss, Total $ 4,500   $ 4,200
Interest Income, Operating, Total 93 135  
Financing Receivable, Allowance for Credit Loss, Ending Balance 1,900 1,900 1,900
HQI_Impaired [Member]      
Financing Receivable, after Allowance for Credit Loss, Total 139   139
Interest Income, Operating, Total 41 $ 41  
Financing Receivable, Allowance for Credit Loss, Ending Balance $ 1,501   $ 1,501
Minimum [Member]      
Notes Receivable, Interest Fixed Rate     6.00%
Maximum [Member]      
Notes Receivable, Interest Fixed Rate     10.00%