| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
| | | Sensors | | | Weighing Solutions | | | Measurement Systems | | | Corporate/ Other | | | Total | |
| Three Fiscal Months Ended September 27, 2025 | | | | | | | | | | | | | | | | | | | | |
| Net third-party revenues | | $ | 31,624 | | | $ | 27,538 | | | $ | 20,566 | | | $ | — | | | $ | 79,728 | |
| Intersegment revenues | | | 405 | | | | 158 | | | | — | | | | (563 | ) | | | — | |
| Total revenues | | | 32,029 | | | | 27,696 | | | | 20,566 | | | | (563 | ) | | | 79,728 | |
| Costs of products sold | | | 21,403 | | | | 16,586 | | | | 10,177 | | | | (563 | ) | | | 47,603 | |
| Gross profit | | | 10,626 | | | | 11,110 | | | | 10,389 | | | | — | | | | 32,125 | |
| Research and development expenses | | | 980 | | | | 1,305 | | | | 2,754 | | | | — | | | | 5,039 | |
| Segment selling, general, and administrative expenses (1) | | | 4,152 | | | | 4,951 | | | | 4,555 | | | | — | | | | 13,658 | |
| Segment operating income | | | 5,494 | | | | 4,854 | | | | 3,080 | | | | — | | | | 13,428 | |
| Other supplemental information: | | | | | | | | | | | | | | | | | | | — | |
| Restructuring costs | | | — | | | | 60 | | | | 136 | | | | 18 | | | | 214 | |
| Depreciation and amortization expense | | | 1,594 | | | | 781 | | | | 1,080 | | | | 534 | | | | 3,989 | |
| Capital expenditures | | | 1,933 | | | | 514 | | | | 147 | | | | 105 | | | | 2,699 | |
| | | | | | | | | | | | | | | | | | | | | |
| Three Fiscal Months Ended September 28, 2024 | | | | | | | | | | | | | | | | | | | | |
| Net third-party revenues | | $ | 28,201 | | | $ | 25,174 | | | $ | 22,352 | | | $ | — | | | $ | 75,727 | |
| Intersegment revenues | | | 337 | | | | — | | | | — | | | | (337 | ) | | | — | |
| Total revenues | | | 28,538 | | | | 25,174 | | | | 22,352 | | | | (337 | ) | | | 75,727 | |
| Costs of products sold | | | 19,808 | | | | 16,334 | | | | 9,662 | | | | (337 | ) | | | 45,467 | |
| Gross profit | | | 8,730 | | | | 8,840 | | | | 12,690 | | | | — | | | | 30,260 | |
| Research and development expenses | | | 1,136 | | | | 1,225 | | | | 2,536 | | | | — | | | | 4,897 | |
| Segment selling, general, and administrative expenses (1) | | | 3,954 | | | | 4,770 | | | | 5,024 | | | | — | | | | 13,748 | |
| Segment operating income | | | 3,640 | | | | 2,845 | | | | 5,130 | | | | — | | | | 11,615 | |
| Other supplemental information: | | | | | | | | | | | | | | | | | | | | |
| Restructuring costs | | | 59 | | | | 23 | | | | — | | | | — | | | | 82 | |
| Depreciation and amortization expense | | | 1,567 | | | | 841 | | | | 1,076 | | | | 429 | | | | 3,913 | |
| Capital expenditures | | | 1,353 | | | | 399 | | | | 347 | | | | 69 | | | | 2,168 | |
| | | Sensors | | | Weighing Solutions | | | Measurement Systems | | | Corporate/ Other | | | Total | |
| Nine Fiscal Months Ended September 27, 2025 | | | | | | | | | | | | | | | | | | | | |
| Net third-party revenues | | $ | 85,243 | | | $ | 83,404 | | | $ | 57,983 | | | $ | — | | | $ | 226,630 | |
| Intersegment revenues | | | 1,237 | | | | 520 | | | | — | | | | (1,757 | ) | | | — | |
| Total revenues | | | 86,480 | | | | 83,924 | | | | 57,983 | | | | (1,757 | ) | | | 226,630 | |
| Costs of products sold | | | 59,220 | | | | 51,451 | | | | 27,952 | | | | (1,757 | ) | | | 136,866 | |
| Gross profit | | | 27,260 | | | | 32,473 | | | | 30,031 | | | | — | | | | 89,764 | |
| Research and development expenses | | | 3,021 | | | | 3,941 | | | | 8,333 | | | | — | | | | 15,295 | |
| Segment selling, general, and administrative expenses (1) | | | 11,609 | | | | 14,401 | | | | 13,594 | | | | — | | | | 39,604 | |
| Segment operating income | | | 12,630 | | | | 14,131 | | | | 8,104 | | | | — | | | | 34,865 | |
| Other supplemental information: | | | | | | | | | | | | | | | | | | | — | |
| Restructuring costs | | | 152 | | | | 113 | | | | 151 | | | | 377 | | | | 793 | |
| Depreciation and amortization expense | | | 4,791 | | | | 2,324 | | | | 3,228 | | | | 1,535 | | | | 11,878 | |
| Capital expenditures | | | 3,375 | | | | 943 | | | | 783 | | | | 183 | | | | 5,284 | |
| | | | | | | | | | | | | | | | | | | | | |
| Nine Fiscal Months Ended September 28, 2024 | | | | | | | | | | | | | | | | | | | | |
| Net third-party revenues | | $ | 86,484 | | | $ | 81,466 | | | $ | 65,919 | | | $ | — | | | $ | 233,869 | |
| Intersegment revenues | | | 1,348 | | | | — | | | | — | | | | (1,348 | ) | | | — | |
| Total revenues | | | 87,832 | | | | 81,466 | | | | 65,919 | | | | (1,348 | ) | | | 233,869 | |
| Costs of products sold | | | 57,303 | | | | 51,049 | | | | 29,104 | | | | (1,348 | ) | | | 136,108 | |
| Gross profit | | | 30,529 | | | | 30,417 | | | | 36,815 | | | | — | | | | 97,761 | |
| Research and development expenses | | | 3,088 | | | | 3,973 | | | | 7,632 | | | | — | | | | 14,693 | |
| Segment selling, general, and administrative expenses (1) | | | 12,178 | | | | 14,663 | | | | 14,113 | | | | — | | | | 40,954 | |
| Segment operating income | | | 15,263 | | | | 11,781 | | | | 15,070 | | | | — | | | | 42,114 | |
| Other supplemental information: | | | | | | | | | | | | | | | | | | | | |
| Restructuring costs | | | 601 | | | | — | | | | — | | | | 263 | | | | 864 | |
| Depreciation and amortization expense | | | 4,753 | | | | 2,507 | | | | 3,217 | | | | 1,294 | | | | 11,771 | |
| Capital expenditures | | | 3,689 | | | | 999 | | | | 867 | | | | 446 | | | | 6,001 | |
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| Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
| | | Fiscal Quarter Ended | | | Nine Fiscal Months Ended | |
| | | September 27, 2025 | | | September 28, 2024 | | | September 27, 2025 | | | September 28, 2024 | |
| Segment operating income | | $ | 13,428 | | | $ | 11,615 | | | $ | 34,865 | | | $ | 42,114 | |
| Restructuring costs | | $ | 214 | | | $ | 82 | | | $ | 793 | | | $ | 864 | |
| Gain on asset held for sale | | $ | (5,544 | ) | | $ | — | | | $ | (5,544 | ) | | $ | — | |
| Unallocated G&A expenses | | $ | 8,599 | | | $ | 7,692 | | | $ | 26,809 | | | $ | 24,585 | |
| Operating income | | $ | 10,159 | | | $ | 3,841 | | | $ | 12,807 | | | $ | 16,665 | |
| Other expense | | $ | (266 | ) | | $ | (3,294 | ) | | $ | (3,306 | ) | | $ | (1,010 | ) |
| Income before taxes | | $ | 9,893 | | | $ | 546 | | | $ | 9,501 | | | $ | 15,654 | |
| | | Fiscal Quarter Ended | | | For the Nine Fiscal Months Ended | |
| | | September 27, 2025 | | | September 28, 2024 | | | September 27, 2025 | | | September 28, 2024 | |
| Sensors to Weighing Solutions | | $ | 404 | | | $ | 332 | | | $ | 1,211 | | | $ | 1,323 | |
| Sensors to Measurement Systems | | | 2 | | | | 4 | | | | 23 | | | | 17 | |
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