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Note 23 - Supplemental Cash Flow Disclosure (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2020
Interest Paid, Excluding Capitalized Interest, Operating Activities       $ 3,161 $ 4,753
Income Taxes Paid       139 168
Proceeds from Income Tax Refunds       96 12
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary $ 0 $ 0 $ 0    
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders 30,769 25,885   56,655  
Increase (Decrease) Due To Recorded Interest Income In Redeemable Financial Instruments         105
Distribution Settlement with Vellar GP [Member]          
Increase (Decrease) in Due from Related Parties, Total       (2,103)  
Increase (Decrease) in Other Investments       701  
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders       1,402  
MetroMile Merger Distribution [Member]          
Increase (Decrease) in Other Investments       (31,049)  
Increase (Decrease) in Equity Method Affiliates       (3,958)  
Distribution Relating to the SPAC Merger [Member]          
Increase (Decrease) in Other Investments       (20,119)  
Additional Paid-in Capital [Member]          
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary 1,449 926 (123) 2,375 (123)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders (0) (0)      
AOCI Attributable to Parent [Member]          
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary (18) 4 8 (14) 8
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders (0) (0)      
Noncontrolling Interest [Member]          
Minority Interest, Increase (Decrease) Related to Units of Consolidated Subsidiary (1,431) (930) $ 115 $ (2,361) $ 115
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders $ 30,769 $ 25,885