XML 79 R64.htm IDEA: XBRL DOCUMENT v3.25.1
Note 7 - Investments (Details Textual)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 30, 2023
shares
Debt Securities, Available-for-Sale, Allowance for Credit Loss       $ 0 $ 0  
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions       191 181  
Long-Term Debt, Gross       $ 59,606 $ 46,296  
Limbach Holdings, Inc. [Member]            
Gain (Loss) on Investments $ 3,300          
Private Company [Member]            
Equity Method Investment, Other-than-Temporary Impairment       0 100  
Limited Liability Investments [Member]            
Equity Method Investments       700 800  
Equity Method Investment, Other-than-Temporary Impairment       0 100  
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments       0    
Argo Holdings [Member]            
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments       0    
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures       2,900 3,500  
Net Lease [Member] | Notes Payable [Member]            
Proceeds from Issuance of Debt     $ 5,200      
Long-Term Debt, Gross   $ 15,800        
Proceeds from Collection of Lease Receivables   $ 8,100        
Private Company Investments [Member]            
Investment Owned, Fair Value       $ 700 $ 900  
Warrant [Member] | Limbach Holdings, Inc. [Member]            
Investment Owned, Balance, Shares (in shares) | shares           400,000
Common Stock [Member] | Limbach Holdings, Inc. [Member]            
Investment Owned, Balance, Shares (in shares) | shares           110,036