Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Change in Level 2 Assets (Details)

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Fair Value Measurements - Change in Level 2 Assets (Details) - USD ($)
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings $ (18,749) $ 37,497    
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Unrealized gain (loss) on investment securities      
Total gains (losses) $ 0 0    
Contingent Consideration, Current        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total gains (losses) 0 0    
Contingent Consideration, Noncurrent        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total gains (losses) 0 0    
Fair Value, Measurements, Recurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Asset Acquisition, Contingent Consideration, Liability, Current 269,368 164,357    
Asset Acquisition, Contingent Consideration, Liability, Noncurrent 1,129,172 1,278,105    
Liabilities, Fair Value Disclosure 1,398,540 1,442,462    
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, Fair Value Disclosure 74,995 131,241 $ 93,744 $ 93,744
Fair Value, Measurements, Recurring | Eurosite Power, Inc. | Estimate of Fair Value Measurement        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value, ending 74,995 131,241    
Fair Value, Measurements, Recurring | Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, Fair Value Disclosure 74,995 131,241    
Asset Acquisition, Contingent Consideration, Liability, Current 0 0    
Asset Acquisition, Contingent Consideration, Liability, Noncurrent 0 0    
Liabilities, Fair Value Disclosure 0 0    
Fair Value, Measurements, Recurring | Level 2 | Eurosite Power, Inc.        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value, ending 74,995 131,241    
Fair Value, Measurements, Recurring | Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, Fair Value Disclosure 0 0    
Asset Acquisition, Contingent Consideration, Liability, Current 0 0    
Asset Acquisition, Contingent Consideration, Liability, Noncurrent 0 0    
Liabilities, Fair Value Disclosure 0 0    
Fair Value, Measurements, Recurring | Level 1 | Eurosite Power, Inc.        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value, ending 0 0    
Fair Value, Measurements, Recurring | Level 3        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, Fair Value Disclosure 0 0    
Asset Acquisition, Contingent Consideration, Liability, Current 269,368 164,357    
Asset Acquisition, Contingent Consideration, Liability, Noncurrent 1,129,172 1,278,105    
Liabilities, Fair Value Disclosure 1,398,540 1,442,462    
Fair Value, Measurements, Recurring | Level 3 | Eurosite Power, Inc.        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value, ending $ 0 $ 0