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Note 11 - Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2025 | Jun. 29, 2024 | Jun. 28, 2025 | Jun. 29, 2024
Net third-party revenues |  | $ 75,161 | $ 77,359 | $ 146,902 | $ 158,142
Intersegment revenues |  | 0 | 0 | 0 | 0
Net revenues |  | 75,161 | 77,359 | 146,902 | 158,142
Costs of products sold |  | 44,567 | 44,952 | 89,262 | 90,641
Gross profit |  | 30,594 | 32,407 | 57,640 | 67,501
Research and development expenses |  | 5,392 | 4,945 | 10,257 | 9,796
Selling, general and administrative expenses |  | 27,701 | 26,501 | 54,412 | 53,895
Segment operating income |  | 12,024 | 13,818 | 21,437 | 30,498
Restructuring charges in 2025 |  | 185 | 0 | 580 | 782
Depreciation and amortization |  | 3,855 | 3,916 | 7,889 | 7,859
Capital expenditures |  | 1,531 | 2,098 | 2,585 | 3,092
Direct Selling, General, and Administrative Expenses [Member] |  |  |  |  |
Selling, general and administrative expenses | [1] | 13,178 | 13,644 | 25,946 | 27,207
Sensors Segment [Member] |  |  |  |  |
Net third-party revenues |  | 26,563 | 28,868 | 53,620 | 58,283
Weighing Solutions Segment [Member] |  |  |  |  |
Net third-party revenues |  | 29,428 | 27,448 | 55,866 | 56,292
Measurement Systems Segment [Member] |  |  |  |  |
Net third-party revenues |  | 19,170 | 21,043 | 37,416 | 43,567
Operating Segments [Member] | Sensors Segment [Member] |  |  |  |  |
Net third-party revenues |  | 26,563 | 28,869 | 53,620 | 58,283
Intersegment revenues |  | 472 | 528 | 831 | 1,011
Net revenues |  | 27,035 | 29,397 | 54,451 | 59,294
Costs of products sold |  | 18,548 | 18,331 | 37,817 | 37,495
Gross profit |  | 8,487 | 11,066 | 16,634 | 21,799
Research and development expenses |  | 1,086 | 936 | 2,042 | 1,952
Segment operating income |  | 3,751 | 6,124 | 7,136 | 11,623
Restructuring charges in 2025 |  | 0 | 0 | 152 | 542
Depreciation and amortization |  | 1,555 | 1,567 | 3,197 | 3,186
Capital expenditures |  | 764 | 1,292 | 1,442 | 1,862
Operating Segments [Member] | Sensors Segment [Member] | Direct Selling, General, and Administrative Expenses [Member] |  |  |  |  |
Selling, general and administrative expenses | [1] | 3,650 | 4,006 | 7,456 | 8,224
Operating Segments [Member] | Weighing Solutions Segment [Member] |  |  |  |  |
Net third-party revenues |  | 29,428 | 27,447 | 55,866 | 56,292
Intersegment revenues |  | 362 | 0 | 362 | 0
Net revenues |  | 29,790 | 27,447 | 56,228 | 56,292
Costs of products sold |  | 18,144 | 17,137 | 34,865 | 34,715
Gross profit |  | 11,646 | 10,310 | 21,363 | 21,577
Research and development expenses |  | 1,395 | 1,352 | 2,636 | 2,748
Segment operating income |  | 5,358 | 4,138 | 9,277 | 8,935
Restructuring charges in 2025 |  | (15) | 0 | 53 | 0
Depreciation and amortization |  | 730 | 838 | 1,543 | 1,666
Capital expenditures |  | 213 | 322 | 429 | 438
Operating Segments [Member] | Weighing Solutions Segment [Member] | Direct Selling, General, and Administrative Expenses [Member] |  |  |  |  |
Selling, general and administrative expenses | [1] | 4,893 | 4,820 | 9,450 | 9,894
Operating Segments [Member] | Measurement Systems Segment [Member] |  |  |  |  |
Net third-party revenues |  | 19,170 | 21,043 | 37,416 | 43,567
Intersegment revenues |  | 0 | 0 | 0 | 0
Net revenues |  | 19,170 | 21,043 | 37,416 | 43,567
Costs of products sold |  | 8,709 | 10,012 | 17,773 | 19,442
Gross profit |  | 10,461 | 11,031 | 19,643 | 24,125
Research and development expenses |  | 2,911 | 2,657 | 5,579 | 5,096
Segment operating income |  | 2,915 | 3,556 | 5,024 | 9,940
Restructuring charges in 2025 |  | 15 | 0 | 15 | 0
Depreciation and amortization |  | 1,077 | 1,071 | 2,148 | 2,141
Capital expenditures |  | 504 | 325 | 636 | 415
Operating Segments [Member] | Measurement Systems Segment [Member] | Direct Selling, General, and Administrative Expenses [Member] |  |  |  |  |
Selling, general and administrative expenses | [1] | 4,635 | 4,818 | 9,040 | 9,089
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |
Net third-party revenues |  | 0 | 0 | 0 | 0
Intersegment revenues |  | (834) | (528) | (1,193) | (1,011)
Net revenues |  | (834) | (528) | (1,193) | (1,011)
Costs of products sold |  | (834) | (528) | (1,193) | (1,011)
Gross profit |  | 0 | 0 | 0 | 0
Research and development expenses |  | 0 | 0 | 0 | 0
Segment operating income |  | 0 | 0 | 0 | 0
Restructuring charges in 2025 |  | 185 | 0 | 360 | 240
Depreciation and amortization |  | 493 | 440 | 1,001 | 866
Capital expenditures |  | 50 | 159 | 78 | 377
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Direct Selling, General, and Administrative Expenses [Member] |  |  |  |  |
Selling, general and administrative expenses | [1] | $ 0 | $ 0 | $ 0 | $ 0
[1] | Segment selling, general and administrative expenses are direct selling, general and administrative expenses, excluding research and development expenses and amortization of intangible assets attributed to the segment.

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