Quarterly report [Sections 13 or 15(d)]

Commitments and Contingencies (Details Narrative)

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Commitments and Contingencies (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2003
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Self-insured retention       $ 100,000    
Restricted cash, noncurrent   $ 12,952,000   12,952,000   $ 12,680,000
Interest income   301,000 $ 213,000 636,000 $ 387,000  
Letters of credit outstanding, amount   3,200,000   3,200,000    
Bond outstanding   21,044,000   21,044,000    
American International Group, Inc [Member]            
Period of finite risk insurance policy 25 years          
Maximum allowable coverage of insurance policy   28,177,000   28,177,000    
Coverage amount under the policy   23,951,000   23,951,000    
Restricted cash, noncurrent   12,952,000   12,952,000   12,680,000
Interest income   $ 128,000 $ 150,000 $ 272,000 $ 298,000  
Insurers obligation to entity on termination of contract   100.00%   100.00%    
American International Group, Inc [Member] | Finite Risk Sinking Funds [Member]            
Interest income       $ 3,481,000   $ 3,209,000
Michael O’Neill [Member]            
Self-insured retention amount       $ 1,000,000    
Michael O’Neill [Member] | 2017 Stock Option Plan [Member]            
Increase in number of share issued       600,000