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Debt (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jul. 01, 2025
Jan. 30, 2025
Oct. 01, 2024
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Dec. 31, 2024
Aug. 16, 2023
Debt [Line Items]                      
Loan obligations       $ 9,000     $ 9,000     $ 14,000  
Term loan         $ 1,640,000            
Amortization of deferred finance costs       $ 17,000   $ 17,000 $ 34,000 $ 34,000      
Excess cash flow percentage             25.00%        
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       6.85%   7.85% 6.85% 7.85%      
Amendment fee paid             $ 20,000        
Term loan monthly principal payments   $ 19,524                  
Finance leases       $ 898,000     $ 898,000     $ 1,007,000  
Average imputed interest rate             7.31%     7.31%  
Finance lease payments       Finance lease payments     Finance lease payments     Finance lease payments  
Notes proceeds             $ 6,550,000        
Promissory notes for placement agency fees       $ 554,000     554,000        
Related party notes amount paid       0     1,291,000        
Interest expense related parties       86,000   $ 118,000 185,000 $ 236,000      
Convertible subordinated notes       4,871,000     4,871,000     $ 6,162,000  
Related party debt not convertible       550,000     550,000        
Market Offering [Member]                      
Debt [Line Items]                      
Related party notes amount paid             1,291,000        
Revolving Loan [Member]                      
Debt [Line Items]                      
Borrowing capacity       7,906,000     $ 7,906,000        
Current Credit Facility [Member]                      
Debt [Line Items]                      
Current credit facility expires             Dec. 30, 2025        
Interest expense on current credit facility       326,000   327,000 $ 641,000 648,000      
Required EBITDA             740,000   $ 1,500,000 2,800,000  
Term Loan increase             1,000,000        
Principal of monthly installments             68,000        
Related party notes allowed to be paid under certain limitations       4,800,000     $ 4,800,000        
Current Credit Facility [Member] | Webster Bank [Member]                      
Debt [Line Items]                      
Current credit facility expires             Dec. 30, 2025        
Revolving Line of Credit [Member]                      
Debt [Line Items]                      
Term Loan       12,094,000     $ 12,094,000     12,905,000  
Revolving Line of Credit [Member] | Webster Bank [Member]                      
Debt [Line Items]                      
Revolving line of credit -maximum       20,000,000     20,000,000        
Term loan             5,700,000        
Term Loans [Member]                      
Debt [Line Items]                      
Term Loan       6,380,000     6,380,000        
Amendment fee paid   20,000                  
Acquisition of additional equipment   1,640,000                  
Related party notes allowed to be paid under certain limitations   $ 4,800,000                  
Solar Credit Facility [Member]                      
Debt [Line Items]                      
Term loan     $ 970,000                
Term Loan       970,000     970,000     970,000  
Interest expense on current credit facility       14,000   $ 11,000 28,000 $ 18,000      
Cumulative advance total     $ 934,000               $ 934,000
Interest rate percentage prior to project completion     5.00%                
Interest accrued     $ 36,000                
Converted term     20 years                
Interest rate percentage upon project completion     5.75%                
Short term debt       13,000     13,000        
Long term debt       957,000     $ 957,000        
Solar Credit Facility [Member] | Connecticut Green Bank [Member]                      
Debt [Line Items]                      
Closing costs     $ 25,000                
Interest accrued     $ 36,000                
Michael & Robert & Taglich Brothers Inc [Member]                      
Debt [Line Items]                      
Issued shares (in Shares)             35,508        
Related party debt       4,871,000     $ 4,871,000        
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate [Member]                      
Debt [Line Items]                      
Related party debt       $ 2,519,000     $ 2,519,000        
Annual interest rate       6.00%     6.00%        
Michael & Robert & Taglich Brothers Inc [Member] | Annual Rate 7% [Member]                      
Debt [Line Items]                      
Related party debt       $ 1,802,000     $ 1,802,000        
Annual interest rate       7.00%     7.00%        
Convertible subordinated notes       $ 1,802,000     $ 1,802,000        
Convertible conversion price per share (in Dollars per share)       $ 9.3     $ 9.3        
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate 12% [Member]                      
Debt [Line Items]                      
Related party debt       $ 550,000     $ 550,000        
Annual interest rate       12.00%     12.00%        
Michael Taglich [Member]                      
Debt [Line Items]                      
Related party notes amount paid             $ 1,050,000        
Taglich Brothers [Member]                      
Debt [Line Items]                      
Related party notes amount paid             241,000        
Loan Obligation [Member]                      
Debt [Line Items]                      
Loan obligations       $ 9,000     9,000     14,000  
Debt [Member]                      
Debt [Line Items]                      
Loan obligations       25,222,000     25,222,000     $ 26,283,000  
Subsequent Event [Member] | Solar Credit Facility [Member] | Connecticut Green Bank [Member]                      
Debt [Line Items]                      
Principal interest payments $ 42,000                    
Common Stock [Member] | Convertible Subordinated Notes [Member]                      
Debt [Line Items]                      
Convertible subordinated notes       $ 2,519,000     $ 2,519,000        
Convertible conversion price per share (in Dollars per share)       $ 15     $ 15        
Maximum [Member] | Current Credit Facility [Member]                      
Debt [Line Items]                      
Term loan             $ 5,700,000