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Debt (Details) - USD ($)
6 Months Ended 9 Months Ended 12 Months Ended
Jul. 01, 2025
Jan. 30, 2025
Oct. 01, 2024
May 31, 2024
Nov. 20, 2023
Aug. 04, 2023
Jun. 30, 2024
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2025
Aug. 16, 2023
Debt [Line Items]                        
Term loan     $ 970,000                  
Interest expense on related party debt                 $ 472,000 $ 472,000    
Amortization of deferred financing costs                 $ 68,000 $ 68,000    
Excess cash flow percentage                 25.00%      
Excess cash flow payments                 $ 43,500      
Credit facility description                 (i) 3.50% and (ii) a rate per annum equal to the rate per annum published from time to time in the “Money Rates” table of the Wall Street Journal (or such other presentation within The Wall Street Journal as may be adopted hereafter for such information) as the base or prime rate for corporate loans at the nation’s largest commercial bank, less sixty-five hundredths (-0.65%) of one percent per annum.      
Average interest rate                 7.66% 7.55%    
Amendment fee paid       $ 20,000 $ 20,000              
Related party notes amount allowed to be paid under certain limitation                 $ 4,800,000      
Interest rate percentage prior to project completion     5.00%                  
Converted term     20 years                  
Interest rate percentage upon project completion     5.75%                  
Finance leases                 $ 1,007,000 $ 884,000    
Average imputed interest rate                 7.31% 7.31%    
Interest expense finance leases                 $ 73,000 $ 50,000    
Finance lease payments                 Finance lease payments Finance lease payments    
Loan obligations                 $ 14,000 $ 22,000    
Notes proceeds                 6,550,000      
Promissory notes for placement agency fees                 554,000      
Convertible subordinated notes                 6,162,000      
Non-convertible subordinated notes                 1,350,000      
CT Green Bank [Member]                        
Debt [Line Items]                        
Interest accrued     $ 36,000                  
Convertible Subordinated Notes [Member]                        
Debt [Line Items]                        
Convertible subordinated notes                 $ 2,732,000      
Convertible conversion price per share (in Dollars per share)                 $ 15      
Convertible subordinated notes                 $ 2,080,000      
Convertible price per share (in Dollars per share)                 $ 9.3      
Revolving Loan [Member]                        
Debt [Line Items]                        
Borrowing capacity                 $ 7,095,000      
Michael & Robert & Taglich Brothers Inc [Member]                        
Debt [Line Items]                        
Issued shares (in Shares)                 35,508      
Total related party debt                 $ 6,162,000      
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate [Member]                        
Debt [Line Items]                        
Total related party debt                 $ 2,732,000      
Annual interest rate                 6.00%      
Michael & Robert & Taglich Brothers Inc [Member] | Annual Rate 7% [Member]                        
Debt [Line Items]                        
Total related party debt                 $ 2,080,000      
Annual interest rate                 7.00%      
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate 12% [Member]                        
Debt [Line Items]                        
Annual interest rate                 12.00%      
Michael & Robert Taglich Inc [Member] | Annual Interest Rate 12% [Member]                        
Debt [Line Items]                        
Total related party debt                 $ 1,350,000      
Current Credit Facility [Member]                        
Debt [Line Items]                        
Interest expense on related party debt                 1,304,000 1,391,000    
Purchase money secured debt allowed           $ 2,000,000            
Amendment fee paid           $ 10,000            
Capital expenditure limit         $ 2,500,000              
Required EBITDA             $ 740,000 $ 1,500,000 $ 2,800,000      
Principal of monthly installments       68,000                
Current Credit Facility [Member] | Webster Bank [Member]                        
Debt [Line Items]                        
Current credit facility expires                 Dec. 30, 2025      
Current Credit Facility [Member] | Minimum [Member]                        
Debt [Line Items]                        
Term loan       1,000,000                
Current Credit Facility [Member] | Maximum [Member]                        
Debt [Line Items]                        
Term loan       $ 5,700,000                
Revolving Line of Credit [Member]                        
Debt [Line Items]                        
Line of credit                 $ 12,905,000 10,804,000    
Revolving Line of Credit [Member] | Webster Bank [Member]                        
Debt [Line Items]                        
Revolving line of credit -maximum                 20,000,000      
Term loan                 5,700,000      
Revolving Credit Facility [Member]                        
Debt [Line Items]                        
Line of credit                 5,225,000      
Revolving Credit Facility [Member] | Webster Bank [Member]                        
Debt [Line Items]                        
Term loan                 1,640,000      
Solar Credit Facility [Member]                        
Debt [Line Items]                        
Line of credit                 970,000 393,000    
Interest expense on related party debt                 44,000 $ 6,000    
Cumulative advance total                 934,000      
Interest accrued     36,000                  
Long term debt                 970,000      
Long term debt current                 0      
Solar Credit Facility [Member] | Connecticut Green Bank [Member]                        
Debt [Line Items]                        
Cumulative advance total     $ 934,000                  
Closing costs                 $ 25,000      
Solar Credit Facility [Member] | Maximum [Member]                        
Debt [Line Items]                        
Cumulative advance total                       $ 934,000
Subsequent Event [Member]                        
Debt [Line Items]                        
Amendment fee paid   $ 20,000                    
Monthly payments   19,524                    
Related party notes amount allowed to be paid under certain limitation   4,800,000                 $ 1,291,000  
Subsequent Event [Member] | Michael Taglich [Member]                        
Debt [Line Items]                        
Related party notes amount allowed to be paid under certain limitation                     1,050,000  
Subsequent Event [Member] | Taglich Brothers [Member]                        
Debt [Line Items]                        
Related party notes amount allowed to be paid under certain limitation                     $ 241,000  
Subsequent Event [Member] | Line of Credit [Member]                        
Debt [Line Items]                        
Acquisition of additional equipment   $ 1,640,000                    
Forecast [Member] | Solar Credit Facility [Member] | Connecticut Green Bank [Member]                        
Debt [Line Items]                        
Principal interest payments $ 42,000