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Debt (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
May 31, 2024
Nov. 20, 2023
Aug. 04, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Jun. 30, 2025
Mar. 31, 2025
Mar. 31, 2024
Aug. 16, 2023
Dec. 31, 2019
Debt [Line Items]                              
Total debt outstanding           $ 24,939,000       $ 23,310,000          
Amortization of deferred financing 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       7.85% 7.51% 7.85% 7.27%                
Description of seventh amendment ●On May 31, 2024, the Company entered into a Seventh Amendment that waived the default caused by the Company’s failure to achieve the Fixed Charge Coverage Ratio required by the Sixth Amendment. This amendment further revised the Financial Covenants. For the six months ending June 30, 2024 EBITDA shall not be less than $740,000; for the nine months ending September 30, 2024 EBITDA shall not be less than $1,500,000; for the twelve months ending December 31, 2024 EBITDA shall not be less than $2,800,000. For the rolling twelve-month period ending March 31, 2025, the Company is required to achieve a Fixed Charge Coverage Ratio of 1.05x. Beginning with the rolling twelve-month period ending June 30, 2025 and forward the Company is required to achieve a Fixed Charge Coverage Ratio of 1.25x. All other covenants remain unchanged. Additionally, this amendment increased the Term Loan by approximately $1,000,000 to $5,700,000, with monthly principal installments in the amount of $68,000. In connection with these changes, the Company paid an amendment fee of $20,000.                            
Finance leases       $ 1,113,000   $ 1,113,000       $ 884,000          
Average imputed interest rate           7.44%       7.44%          
Finance lease payments       Finance leases   Finance leases                  
Loan obligations       $ 18,000   $ 18,000       $ 22,000          
Notes proceeds           6,550,000                  
Promissory notes-Taglich brothers       554,000   554,000                  
Convertible subordinated notes       6,162,000   6,162,000                  
Non-convertible subordinated notes       1,350,000   1,350,000                  
Related party notes amount allowed to be paid under certain limitation       250,000   250,000                  
Convertible Subordinated Notes [Member]                              
Debt [Line Items]                              
Convertible subordinated notes       $ 2,732,000   $ 2,732,000                  
Convertible conversion price per share (in Dollars per share)       $ 15.00   $ 15.00                  
Convertible subordinated notes       $ 2,080,000   $ 2,080,000                  
Convertible conversion price per share (in Dollars per share)           $ 9.3                  
Maximum [Member]                              
Debt [Line Items]                              
Amount of EBITDA           $ 1,775,000                  
Minimum [Member]                              
Debt [Line Items]                              
Amount of EBITDA           740,000                  
Michael & Robert & Taglich Brothers Inc [Member]                              
Debt [Line Items]                              
Interest expense       118,000 $ 118,000 $ 236,000 $ 236,000                
Issued shares (in Shares)           35,508                  
Total related party debt       6,162,000   $ 6,162,000                  
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate [Member]                              
Debt [Line Items]                              
Total related party debt       $ 2,732,000   $ 2,732,000                  
Annual interest rate       6.00%   6.00%                  
Michael & Robert & Taglich Brothers Inc [Member] | Annual Rate 7% [Member]                              
Debt [Line Items]                              
Total related party debt       $ 2,080,000   $ 2,080,000                  
Annual interest rate       7.00%   7.00%                  
Michael & Robert & Taglich Brothers Inc [Member] | Annual Interest Rate 12% [Member]                              
Debt [Line Items]                              
Annual interest rate       12.00%   12.00%                  
Michael & Robert Taglich Inc [Member] | Annual Interest Rate 12% [Member]                              
Debt [Line Items]                              
Total related party debt       $ 1,350,000   $ 1,350,000                  
Current Credit Facility [Member]                              
Debt [Line Items]                              
Outstanding indebtedness       16,747,000   16,747,000                  
Interest expense       $ 327,000 372,000 648,000 704,000                
Amount of EBITDA           $ 740,000                  
Purchase money secured debt allowed     $ 2,000,000                        
Amendment fee paid $ 20,000 $ 20,000 $ 10,000                        
Fixed charge coverage ratio   1.25%   1.20%   1.20%             1.10%    
Capital expenditure   $ 2,500,000                          
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] | Maximum [Member]                              
Debt [Line Items]                              
Outstanding loan amount 5,700,000                            
Current Credit Facility [Member] | Minimum [Member]                              
Debt [Line Items]                              
Loan amount increase $ 1,000,000                            
Revolving Credit Facility [Member]                              
Debt [Line Items]                              
Line of credit       $ 11,147,000   $ 11,147,000       10,804,000          
Revolving line of credit availability subject to having requisite collateral and compliance with Credit Facility       8,853,000   8,853,000                  
Revolving Credit Facility [Member] | Webster Bank [Member]                              
Debt [Line Items]                              
Outstanding indebtedness                             $ 20,000,000
Line of Credit [Member] | Webster Bank [Member]                              
Debt [Line Items]                              
Term loan                             $ 5,700,000
Solar Credit Facility [Member]                              
Debt [Line Items]                              
Interest expense       17,000 $ 0 24,000 $ 0                
Line of credit       899,000   899,000       $ 393,000          
Cumulative Advance total       899,000   899,000                  
Long term debt       $ 886,000   886,000                  
Solar Credit Facility [Member] | Connecticut Green Bank [Member]                              
Debt [Line Items]                              
Closing costs           $ 25,000                  
Interest rate percentage prior to project completion       5.00%   5.00%                  
Converted term           20                  
Interest rate percentage upon project completion       5.75%   5.75%                  
Projected semi-annual payment amounts including interest           $ 41,000                  
Solar Credit Facility [Member] | Maximum [Member]                              
Debt [Line Items]                              
Cumulative Advance total                           $ 934,000  
Forecast [Member] | Current Credit Facility [Member]                              
Debt [Line Items]                              
Amount of EBITDA               $ 1,500,000 $ 2,800,000            
Fixed charge coverage ratio                     1.25% 1.05%