Note 2 - Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2026	Mar. 29, 2025
Net revenues	$ 84,353	$ 71,741
UNITED STATES
Net revenues	40,497	33,949
Europe [Member]
Net revenues	24,282	20,908
Asia [Member]
Net revenues	11,525	10,195
CANADA
Net revenues	3,645	3,286
ISRAEL
Net revenues	4,404	3,403
Sensors Segment [Member]
Net revenues	33,314	27,055
Sensors Segment [Member] \| UNITED STATES
Net revenues	14,195	10,476
Sensors Segment [Member] \| Europe [Member]
Net revenues	8,241	8,346
Sensors Segment [Member] \| Asia [Member]
Net revenues	6,565	4,863
Sensors Segment [Member] \| CANADA
Net revenues	0	0
Sensors Segment [Member] \| ISRAEL
Net revenues	4,313	3,370
Weighing Solutions Segment [Member]
Net revenues	30,236	26,439
Weighing Solutions Segment [Member] \| UNITED STATES
Net revenues	11,932	11,186
Weighing Solutions Segment [Member] \| Europe [Member]
Net revenues	14,801	12,093
Weighing Solutions Segment [Member] \| Asia [Member]
Net revenues	3,410	3,120
Weighing Solutions Segment [Member] \| CANADA
Net revenues	2	7
Weighing Solutions Segment [Member] \| ISRAEL
Net revenues	91	33
Measurement Systems Segment [Member]
Net revenues	20,803	18,247
Measurement Systems Segment [Member] \| UNITED STATES
Net revenues	14,370	12,287
Measurement Systems Segment [Member] \| Europe [Member]
Net revenues	1,240	469
Measurement Systems Segment [Member] \| Asia [Member]
Net revenues	1,550	2,212
Measurement Systems Segment [Member] \| CANADA
Net revenues	3,643	3,279
Measurement Systems Segment [Member] \| ISRAEL
Net revenues	0	0
Test & Measurement Sector [Member]
Net revenues	17,768	14,733
Avionics, Military & Space Sector [Member]
Net revenues	11,311	5,378
Transportation Sector [Member]
Net revenues	14,800	15,430
Other Markets [Member]
Net revenues	16,361	13,248
Industrial Weighing Sector [Member]
Net revenues	9,771	8,209
General Industrial Sector [Member]
Net revenues	6,438	5,288
Steel Sector [Member]
Net revenues	$ 7,904	$ 9,455