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Note 2 - Revenue Recognition (Tables)

12 Months Ended

Mar. 31, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Year Ended March 31, 2021
		Sterilization and Disinfection Control				Instruments				Biopharmaceutical Development				Continuous Monitoring				Corporate and Other				Total
Discrete Revenues
Consumables		$	45,869			$	3,135			$	13,942			$	63			$	-			$	63,009
Hardware and Software			505				21,346				13,545				8,623				-				44,019
Services			1,848				7,980				2,928				2,870				-				15,626
Contracted Revenues
Services and Software			4,897				4				3,477				2,905				-				11,283
Total Revenues		$	53,119			$	32,465			$	33,892			$	14,461			$	-			$	133,937

		Year Ended March 31, 2020
		Sterilization and Disinfection Control				Instruments				Biopharmaceutical Development				Continuous Monitoring				Corporate and Other				Total
Discrete Revenues
Consumables		$	42,654			$	3,197			$	4,981			$	43			$	2,436			$	53,311
Hardware and Software			551				25,627				6,015				7,897				-				40,090
Services			1,592				9,160				1,761				2,396				27				14,936
Contracted Revenues
Services and Software			4,863				-				1,094				3,393				-				9,350
Total Revenues		$	49,660			$	37,984			$	13,851			$	13,729			$	2,463			$	117,687

		Year Ended March 31, 2019
		Sterilization and Disinfection Control				Instruments				Biopharmaceutical Development				Continuous Monitoring				Corporate and Other				Total
Discrete Revenues
Consumables		$	39,670			$	3,101			$	-			$	388			$	6,430			$	49,589
Hardware and Software			580				24,500				-				6,987				142				32,209
Services			1,209				8,524				-				2,001				335				12,069
Contracted Revenues
Services and Software			4,838				-				-				4,430				-				9,268
Total Revenues		$	46,297			$	36,125			$	-			$	13,806			$	6,907			$	103,135

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

Contract liabilities balance as of March 31, 2020		$	7,217
Prior year liabilities recognized in revenues during the year ended March 31, 2021			(4,368	)
Contract liabilities added during the year ended March 31, 2021, net of revenues recognized			6,145
Contract liabilities balance as of March 31, 2021		$	8,994

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

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- References

No definition available.

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Period Type:	duration