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Income Taxes (Narrative) (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2012
Dec. 31, 2024
Proceeds from sale of common stock         $ 22,500,000  
Net operating loss carryforwards $ 21,764,000   $ 21,764,000      
Carryforwards utilize limit before the stock offering closed     163,000      
Unutilized operating loss carryforwards that will expire 20,520,000   20,520,000      
Reduced deferred tax assets and valuation allowance $ 6,977,000   $ 6,977,000      
Effective tax rate 21.30% 12.30% 21.00% 16.40%    
Deferred tax asset $ 4,420,000   $ 4,420,000     $ 4,177,000
Deferred tax asset, valuation allowance 0   0      
Unrecognized tax benefits $ 0   $ 0     $ 0
Minimum [Member]            
Net operating loss carryforwards, expiration date     Jan. 01, 2024      
Maximum [Member]            
Net operating loss carryforwards, expiration date     Dec. 31, 2032