Note 5 - Business Acquisitions - Summary of Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 23, 2023	Aug. 08, 2023	Jul. 12, 2023	Mar. 27, 2023	Mar. 25, 2023	Feb. 02, 2023	Sep. 28, 2022	Sep. 27, 2022	May 31, 2022
Goodwill	$ 106,366				$ 69,360
TIC-MS, Inc. [Member]
Goodwill		$ 27,095		$ 7,193
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, Intangibles and Deferred Taxes		34,995		9,628
Cash		37		80
Accounts Receivable		962		470
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		1,678
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other		(83)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		4,695		356
Current Liabilities		(631)		(118)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		(3,256)		(636)
Total Purchase Price		38,563		9,780
Other Current Assets		83
Property and Equipment		4,695		356
Deferred Tax Liability		(3,256)		(636)
TIC-MS, Inc. [Member] | Customer-Related Intangible Assets [Member]
Intangible Assets		$ 7,900		2,303
TIC-MS, Inc. [Member] | Noncompete Agreements [Member]
Intangible Assets				$ 132
e2b [Member]
Goodwill			$ 2,602					$ 1,367
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, Intangibles and Deferred Taxes			4,151					2,509
Accounts Receivable			665					361
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other			(383)					(24)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment								326
Current Liabilities			(149)					(121)
Total Purchase Price			4,284					3,099
Other Current Assets			383					24
Property and Equipment								326
e2b [Member] | Customer-Related Intangible Assets [Member]
Intangible Assets			1,062					746
e2b [Member] | Noncompete Agreements [Member]
Intangible Assets			392					$ 396
e2b [Member] | Sales Backlog [Member]
Intangible Assets			$ 95
Elite [Member]
Goodwill						$ 820
Accounts Receivable						62
Total Purchase Price						$ 882
Complete Calibrations [Member]
Goodwill							$ 1,123
Cash							10
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory							44
Total Purchase Price							$ 1,177
Alliance [Member]
Goodwill									$ 1,783
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, Intangibles and Deferred Taxes									4,217
Accounts Receivable									343
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment									170
Current Liabilities									(27)
Total Purchase Price									4,703
Property and Equipment									170
Alliance [Member] | Customer-Related Intangible Assets [Member]
Intangible Assets									2,320
Alliance [Member] | Noncompete Agreements [Member]
Intangible Assets									$ 114