v3.25.2
Segment Information - Schedule of Major Activities for Reportable Segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Net sales      
Total net sales $ 67,610 $ 69,368 $ 77,337
Cost of sales, operating expenses and other income      
Total cost of sales, operating expenses and other income 64,296 65,583 74,450
Operating income (loss)      
Total operating income 3,314 3,785 2,887
Income (loss) before income taxes      
Total income before taxes 11,300 7,819 2,314
Injection Molded Plastic Parts [Member]      
Net sales      
Total net sales 11,206 12,391 15,617
Cost of sales, operating expenses and other income      
Total cost of sales, operating expenses and other income 12,516 13,262 17,537
Operating income (loss)      
Total operating income (1,310) (871) (1,920)
Income (loss) before income taxes      
Total income before taxes 5,024 2,308 (2,423)
Electronic Products [Member]      
Net sales      
Total net sales 56,404 56,977 61,720
Cost of sales, operating expenses and other income      
Total cost of sales, operating expenses and other income 50,432 51,059 55,501
Operating income (loss)      
Total operating income 5,972 5,918 6,219
Income (loss) before income taxes      
Total income before taxes 7,624 6,773 6,149
Corporate Expenses [Member]      
Cost of sales, operating expenses and other income      
Total cost of sales, operating expenses and other income 1,348 1,262 1,412
Operating income (loss)      
Total operating income (1,348) (1,262) (1,412)
Income (loss) before income taxes      
Total income before taxes $ (1,348) $ (1,262) $ (1,412)