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Note 12 - Revenues (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Year Ended December 31,
(in thousands)		2022				2021
Instruments, equipment, software and accessories		$	108,165			$	114,115
Service, maintenance and warranty contracts			5,170				4,789
Total revenues		$	113,335			$	118,904

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

		December 31,
(in thousands)		2022				2021
Service contracts		$	1,530			$	1,976
Customer advances			1,840				2,290
Total deferred revenue		$	3,370			$	4,266

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

		December 31,
(in thousands)		2022				2021
Balance, beginning of period		$	136			$	227
Bad debt expense (credit)			62				(4	)
Charge-offs and other			(7	)			(87	)
Balance, end of period		$	191			$	136

Schedule of Product Warranty Liability [Table Text Block]

		December 31,
(in thousands)		2022				2021
Balance, beginning of period		$	240			$	186
Expense			408				319
(Charges)/Credits			(380	)			(265	)
Balance, end of period		$	268			$	240

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Tabular disclosure of allowance for credit loss on financing receivable.

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+ References

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