v3.26.1
Segment Information - Schedule of Information by Segment (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 29, 2026
Jun. 29, 2025
Residential Solar Installation [Member]        
Schedule of Information by Segment [Line Items]        
Operating revenues $ 28,672,000 $ 38,516,000 $ 60,213,000 $ 75,020,000
Less:        
Cost of revenues 20,057,000 [1] 25,012,000 [2] 38,067,000 [3] 47,627,000 [4]
Sales commissions 3,378,000 8,736,000 9,931,000 15,403,000
Sales and marketing 2,624,000 6,665,000 6,163,000 15,187,000
General and administrative 19,356,000 [1] 10,557,000 [2] 35,189,000 [3] 20,997,000 [4]
Segment operating income (loss) (16,743,000) (12,454,000) (29,137,000) (24,194,000)
Unallocated amounts:        
Cost of revenues, depreciation and amortization 300 400 900 800
General and administrative, depreciation and amortization 1,000 800 2,800 1,800
Total, depreciation and amortization 1,300 1,200 3,700 2,600
New Homes Business [Member]        
Schedule of Information by Segment [Line Items]        
Operating revenues 13,484,000 27,599,000 28,109,000 69,508,000
Less:        
Cost of revenues 9,841,000 [1] 17,319,000 [2] 19,802,000 [3] 45,741,000 [4]
Sales commissions 1,148,000 319,000 2,314,000 1,336,000
Sales and marketing 166,000 499,000 1,042,000 499,000
General and administrative 7,639,000 [1] 5,929,000 [2] 19,184,000 [3] 10,385,000 [4]
Segment operating income (loss) (5,310,000) 3,533,000 (14,233,000) 11,547,000
Unallocated amounts:        
Cost of revenues, depreciation and amortization 200 100
General and administrative, depreciation and amortization 700 200 900 400
Total, depreciation and amortization 900 200 1,000 400
Dealer [Member]        
Schedule of Information by Segment [Line Items]        
Operating revenues 12,702,000 39,329,000
Less:        
Cost of revenues [1] [2] 134,000 [3] [4]
Sales commissions 10,195,000 31,040,000
Sales and marketing 613,000 1,191,000
General and administrative 3,297,000 [1] [2] 6,245,000 [3] [4]
Segment operating income (loss) (1,403,000) 719,000
Unallocated amounts:        
Cost of revenues, depreciation and amortization 100 200
General and administrative, depreciation and amortization 1,000 1,900
Total, depreciation and amortization 1,100 2,100
Reportable Subsegments [Member]        
Schedule of Information by Segment [Line Items]        
Operating revenues 54,858,000 66,115,000 127,651,000 144,528,000
Less:        
Cost of revenues 29,898,000 [1] 42,331,000 58,003,000 [1] 93,368,000
Sales commissions 14,721,000 9,055,000 43,285,000 16,739,000
Sales and marketing 3,403,000 7,164,000 8,396,000 15,686,000
General and administrative 30,292,000 [1] 16,486,000 60,618,000 [3] 31,382,000
Segment operating income (loss) (23,456,000) (8,921,000) (42,651,000) (12,647,000)
Unallocated amounts:        
Interest expense (8,470,000) (6,372,000) (15,394,000) (12,413,000)
Interest income     3,000
Other non-operating income, net 38,820,000 (12,044,000) 69,581,000 2,532,000
Income (loss) before income taxes: 6,894,000 (27,337,000) 12,144,000 (22,525,000)
Cost of revenues, depreciation and amortization 600 400 1,200 800
General and administrative, depreciation and amortization 2,700 1,000 5,600 2,200
Total, depreciation and amortization $ 3,300 $ 1,400 $ 6,800 $ 3,000
[1] Depreciation and amortization expense in the thirteen week period ended June 28, 2026 was as follows (in millions):
[2] Depreciation and amortization expense in the thirteen week period ended June 29, 2025 was as follows (in millions):
[3] Depreciation and amortization expense in the twenty-six week period ended June 28, 2026 was as follows (in millions):
[4] Depreciation and amortization expense in the twenty-six week period ended June 29, 2025 was as follows (in millions):