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Note 11 - Revenues (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended September 30,								Nine Months Ended September 30,
(in thousands)		2023				2022				2023				2022
Instruments, equipment, software and accessories		$	23,500			$	25,705			$	79,261			$	81,008
Service, maintenance and warranty contracts			1,863				1,217				4,836				3,900
Total revenues		$	25,363			$	26,922			$	84,097			$	84,908

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

		Three Months Ended September 30,								Nine Months Ended September 30,
(in thousands)		2023				2022				2023				2022
United States		$	12,017			$	11,511			$	36,655			$	38,278
Europe			7,063				7,344				23,836				22,361
Greater China			3,489				4,497				13,824				11,624
Rest of the world			2,794				3,570				9,782				12,645
Total revenues		$	25,363			$	26,922			$	84,097			$	84,908

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

(in thousands)		September 30, 2023				December 31, 2022				Change				% Change
Service contracts		$	2,234			$	1,530			$	704				46	%
Customer advances			1,771				1,840				(69	)			-4	%
Total deferred revenue		$	4,005			$	3,370			$	635				19	%

Schedule of Product Warranty Liability [Table Text Block]

		Nine Months Ended September 30,
(in thousands)		2023				2022
Balance, beginning of period		$	191			$	136
Provision for bad debts			9				103
Charge-offs and other			(56	)			(60	)
Balance, end of period		$	144			$	179

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Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

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+ References

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+ References

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