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Note 2 - Acquisitions (Details Textual)
$ in Thousands
3 Months Ended 8 Months Ended 9 Months Ended 11 Months Ended 12 Months Ended
Dec. 12, 2022
USD ($)
Feb. 28, 2022
USD ($)
Feb. 21, 2022
USD ($)
Jan. 24, 2022
USD ($)
Jan. 19, 2022
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Revenue from Contract with Customer, Including Assessed Tax           $ 9,323 $ 6,575        
Proceeds from Divestiture of Businesses           0 9,317        
Term Loan in Connection with Northbound Acquisition [Member]                      
Debt Instrument, Face Amount   $ 1,500                  
Debt Instrument, Interest Rate, Stated Percentage   4.00%                  
Debt Instrument, Term (Month)   36 months                  
Dubin [Member] | Royalty [Member]                      
Revenue from Contract with Customer, Including Assessed Tax           30,000 5,000        
Temporary Alternatives [Member] | Royalty [Member]                      
Revenue from Contract with Customer, Including Assessed Tax           139 47        
Northbound [Member] | Royalty [Member]                      
Revenue from Contract with Customer, Including Assessed Tax           263 96        
MRINetwork [Member] | Royalty [Member]                      
Revenue from Contract with Customer, Including Assessed Tax           2,300          
Dubin [Member]                      
Business Combination, Consideration Transferred, Total     $ 2,462   $ 2,500            
Goodwill, Acquired During Period                   $ 200,000  
Proceeds from Divestiture of Businesses             350        
Business Combination, Consideration Transferred, Liabilities Incurred     362                
Dubin [Member] | Adjusted Net Working Capital Payable [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred     62                
Dubin [Member] | Notes Payable, Other Payables [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred     $ 300                
Dubin [Member] | Other Miscellaneous Income [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition                     $ 150,000
Dubin [Member] | Other Miscellaneous Income [Member] | Previously Reported [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition             (478,000)        
Dubin [Member] | Other Miscellaneous Income [Member] | Revision of Prior Period, Adjustment [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition                     $ (628)
Dubin [Member] | Customer Relationships [Member]                      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles                   972,000  
Dubin [Member] | Customer Lists [Member]                      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles                   $ (772,000)  
Temporary Alternatives [Member]                      
Business Combination, Consideration Transferred, Total       $ 7,043              
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles               $ (375)      
Goodwill, Acquired During Period               375      
Proceeds from Divestiture of Businesses                 $ 2,900    
Significant Changes, Franchises Purchased During Period       3              
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets               $ (3)      
Business Combination, Consideration Transferred, Liabilities Incurred       $ 336              
Temporary Alternatives [Member] | Other Miscellaneous Income [Member] | Previously Reported [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition             (1,500)        
Northbound [Member]                      
Business Combination, Consideration Transferred, Total   $ 11,428                  
Goodwill, Acquired During Period           500          
Proceeds from Divestiture of Businesses             6,400        
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets           363          
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Current Assets           (34)          
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities           64          
Northbound [Member] | Adjusted Net Working Capital Payable [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred   328                  
Northbound [Member] | Notes Payable, Other Payables [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred   $ 1,500                  
Northbound [Member] | Other Miscellaneous Income [Member] | Previously Reported [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition             $ (1,700)        
Northbound [Member] | Other Miscellaneous Income [Member] | Revision of Prior Period, Adjustment [Member]                      
Gain (Loss) on Disposition of Assets Acquired in Acquisition                 $ 389    
Northbound [Member] | Customer Relationships [Member]                      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles           (389)          
Northbound [Member] | Trade Names [Member]                      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles           $ (111)          
MRINetwork [Member]                      
Business Combination, Consideration Transferred, Total $ 13,283                    
MRINetwork [Member] | Contingent Consideration Liability [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred 60                    
MRINetwork [Member] | Adjusted Net Working Capital Payable [Member]                      
Business Combination, Consideration Transferred, Liabilities Incurred $ 223