v3.26.1
Note 14 - Business Acquisitions (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jan. 31, 2026
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Business Combination [Line Items]              
Net Income (Loss)   $ 52,592,000 $ 42,947,000 $ 46,528,000 $ 42,922,000 $ 95,539,000 $ 89,450,000
Deferred tax liability   3,600,000       3,600,000  
Goodwill   16,100,000       16,100,000  
Amortization expense   1,400,000       22,427,000  
Other Underwriting Expenses              
Business Combination [Line Items]              
Amortization expense   1,200,000          
Acquisition Expenses              
Business Combination [Line Items]              
Amortization expense   200,000          
Customer Relationships              
Business Combination [Line Items]              
Intangible assets   15,600,000          
Noncompete Agreements              
Business Combination [Line Items]              
Intangible assets   700,000          
VOBA              
Business Combination [Line Items]              
Intangible assets   3,500,000          
Gray Casualty & Surety Company              
Business Combination [Line Items]              
Business Acquisition, Percentage of Voting Interests Acquired 100.00%            
Business Combination, Consideration Transferred $ 314,000,000            
Revenue   21,600,000       33,600,000  
Net Income (Loss)   (4,600,000)       (5,800,000)  
Intangible assets 66,500,000            
Deferred tax liability 18,655,000            
Goodwill 105,097,000            
Acquisition-related expenses   $ 7,400,000       7,400,000  
Value of business acquired (VOBA) 26,532,000            
Impairment charges           $ 0  
Gray Casualty & Surety Company | Customer Relationships              
Business Combination [Line Items]              
Intangible assets 60,800,000            
Gray Casualty & Surety Company | Noncompete Agreements              
Business Combination [Line Items]              
Intangible assets $ 700,000