v3.26.1
SEGMENT DATA (Reconciliation of Segment Operations) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Corporate and Other      
Revenues $ 86,306 $ 79,720 $ 90,581
Total cost of sales 58,213 59,484 69,670
Gross profit 28,093 20,236 20,911
General and administrative 18,691 18,008 16,740
Sales and marketing 10,099 11,595 12,988
Research and development 945 1,229 1,495
Total operating expenses 29,735 30,832 31,735
Loss from operations (1,642) (10,596) (10,824)
Other income (1,461) (1,163) (806)
Amortization of debt issue costs (170) (206) (95)
Loss on debt extinguishment (562) 0 0
Loss before income tax (3,103) (11,759) (11,630)
Depreciation and Amortization 1,784 2,618 2,590
Capital Expenditures 83 99 837
Lighting Segment      
Corporate and Other      
Depreciation and Amortization 597 868 747
Capital Expenditures 7 26 92
Maintenance Segment      
Corporate and Other      
Depreciation and Amortization 167 386 453
Capital Expenditures 1 2 535
EV Segment      
Corporate and Other      
Depreciation and Amortization 775 1,083 979
Capital Expenditures 0 2 56
Product revenue      
Corporate and Other      
Revenues 57,029 54,368 63,307
Total cost of sales 36,893 37,319 44,466
Service revenue      
Corporate and Other      
Revenues 29,277 25,352 27,274
Total cost of sales 21,320 22,165 25,204
Operating Segments      
Corporate and Other      
Revenues 86,306 79,720 90,581
Total cost of sales 58,213 59,484 69,670
Gross profit 28,093 20,236 20,911
General and administrative 18,691 18,008 16,740
Impairment of intangibles     456
Sales and marketing 10,099 11,595 12,988
Research and development 945 1,229 1,495
Acquisition-related     56
Total operating expenses 29,735 30,832 31,735
Loss from operations (1,642) (10,596) (10,824)
Other income 51 62 39
Interest income 3 7 2
Interest expense (783) (1,026) (752)
Amortization of debt issue costs (170) (206) (95)
Loss on debt extinguishment (562)    
Total Other income (expense) (1,461) (1,163) (806)
Loss before income tax (3,103) (11,759) (11,630)
Depreciation and Amortization 245 281 411
Capital Expenditures 75 69 154
Operating Segments | Lighting Segment      
Corporate and Other      
Revenues 55,880 47,704 61,102
Total cost of sales 37,402 34,996 44,290
Gross profit 18,478 12,708 16,812
General and administrative 7,669 6,083 6,516
Impairment of intangibles     0
Sales and marketing 8,175 8,800 10,813
Research and development 459 588 809
Acquisition-related     21
Total operating expenses 16,303 15,471 18,159
Loss from operations 2,175 (2,763) (1,347)
Operating Segments | Maintenance Segment      
Corporate and Other      
Revenues 16,042 15,190 17,147
Total cost of sales 11,847 12,422 16,399
Gross profit 4,195 2,768 748
General and administrative 2,451 3,075 4,517
Impairment of intangibles     456
Sales and marketing 435 685 928
Research and development 143 196 359
Acquisition-related     11
Total operating expenses 3,029 3,956 6,271
Loss from operations 1,166 (1,188) (5,523)
Operating Segments | EV Segment      
Corporate and Other      
Revenues 14,384 16,826 12,332
Total cost of sales 8,964 12,066 8,981
Gross profit 5,420 4,760 3,351
General and administrative 4,946 5,423 3,649
Impairment of intangibles     0
Sales and marketing 1,037 1,578 1,146
Research and development 85 115 102
Acquisition-related     17
Total operating expenses 6,068 7,116 4,914
Loss from operations (648) (2,356) (1,563)
Operating Segments | Corporate and Other      
Corporate and Other      
Revenues 0 0 0
Total cost of sales 0 0 0
Gross profit 0 0 0
General and administrative 3,625 3,427 2,058
Impairment of intangibles     0
Sales and marketing 452 532 101
Research and development 258 330 225
Acquisition-related     7
Total operating expenses 4,335 4,289 2,391
Loss from operations (4,335) (4,289) (2,391)
Operating Segments | Product revenue      
Corporate and Other      
Revenues 57,029 54,368 63,307
Total cost of sales 36,893 37,319 44,466
Operating Segments | Product revenue | Lighting Segment      
Corporate and Other      
Revenues 41,173 40,045 50,319
Total cost of sales 27,834 28,664 36,490
Operating Segments | Product revenue | Maintenance Segment      
Corporate and Other      
Revenues 7,293 5,902 4,687
Total cost of sales 3,976 3,215 2,339
Operating Segments | Product revenue | EV Segment      
Corporate and Other      
Revenues 8,563 8,421 8,301
Total cost of sales 5,083 5,440 5,637
Operating Segments | Product revenue | Corporate and Other      
Corporate and Other      
Revenues 0 0 0
Total cost of sales 0 0 0
Operating Segments | Service revenue      
Corporate and Other      
Revenues 29,277 25,352 27,274
Total cost of sales 21,320 22,165 25,204
Operating Segments | Service revenue | Lighting Segment      
Corporate and Other      
Revenues 14,707 7,659 10,783
Total cost of sales 9,568 6,332 7,800
Operating Segments | Service revenue | Maintenance Segment      
Corporate and Other      
Revenues 8,749 9,288 12,460
Total cost of sales 7,871 9,207 14,060
Operating Segments | Service revenue | EV Segment      
Corporate and Other      
Revenues 5,821 8,405 4,031
Total cost of sales 3,881 6,626 3,344
Operating Segments | Service revenue | Corporate and Other      
Corporate and Other      
Revenues 0 0 0
Total cost of sales $ 0 $ 0 $ 0