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Note 3 - Revenues (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)		2025				2024				2025				2024
Instruments, equipment, software and accessories		$	18,178			$	21,292			$	38,043			$	44,051
Service, maintenance and warranty contracts			2,272				1,805				4,181				3,558
Total revenues		$	20,450			$	23,097			$	42,224			$	47,609

		Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)		2025				2024				2025				2024
Goods and services transferred at a point in time		$	19,269			$	21,983			$	40,214			$	45,726
Goods and services transferred over time			1,181				1,114				2,010				1,883
Total revenues		$	20,450			$	23,097			$	42,224			$	47,609

Revenue from External Customers by Geographic Areas [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)		2025				2024				2025				2024
Americas
United States		$	9,656				10,805			$	19,483			$	21,788
Americas - Other			422				663				1,251				1,424
Europe, Middle East and Africa			6,588				6,599				12,618				13,222
Asia
China			2,451				3,249				5,185				7,631
Asia - Other			1,333				1,781				3,687				3,544
		$	20,450			$	23,097			$	42,224			$	47,609

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		June 30,				December 31,
(in thousands)		2025				2024				Change				Percentage
Deferred revenue
Service, maintenance and warranty contracts		$	1,434			$	1,560			$	(126	)			-8	%
Installation and training			611				806				(195	)			-24	%
Customer advances			1,098				1,440				(342	)			-24	%
Total short-term contract liabilities			3,143				3,806				(663	)			-17	%
Long-term service, maintenance and warranty contracts			258				-				258				100	%
Total contract liabilities		$	3,401			$	3,806			$	(405	)			-11	%

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

		Remaining Performance Obligations
(in thousands)		2025*				2026				2027				2028				2029				Thereafter				Total
Service, maintenance and warranty contracts		$	1,119			$	423			$	109			$	25			$	13			$	3			$	1,692

Financing Receivable, Allowance for Credit Loss [Table Text Block]

		Six Months Ended June 30,
(in thousands)		2025				2024
Balance, beginning of period		$	215			$	160
Provision for expected credit losses			(39	)			46
Charge-offs and other			(12	)			(29	)
Balance, end of period		$	164			$	177

Schedule of Product Warranty Liability [Table Text Block]

		Six Months Ended June 30,
(in thousands)		2025				2024
Balance, beginning of period		$	318			$	336
Provision for warranties			68				231
Warranty claims			(47	)			(196	)
Balance, end of period		$	339			$	371

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