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Note 12 - Segment Information (Tables)

6 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Three Months Ended September 30,								Six Months Ended September 30,
		2021				2020				2021				2020
Total revenues (a)
Sterilization and Disinfection Control		$	14,033			$	11,552			$	29,183			$	24,619
Biopharmaceutical Development			10,555				9,131				19,432				15,080
Instruments			6,970				7,558				14,532				15,238
Continuous Monitoring			4,282				3,619				7,613				6,864
Total revenues (a)		$	35,840			$	31,860			$	70,760			$	61,801
Gross profit (loss)
Sterilization and Disinfection Control		$	10,486			$	8,770			$	21,914			$	18,790
Biopharmaceutical Development			6,601				6,212				11,293				10,678
Instruments			4,112				4,852				8,772				9,541
Continuous Monitoring			2,016				1,368				3,468				2,552
Reportable segment gross profit			23,215				21,202				45,447				41,561
Corporate and Other (b)			(75	)			83				(96	)			64
Gross profit		$	23,140			$	21,285			$	45,351			$	41,625
Reconciling Items:
Operating expenses			18,939				16,815				38,027				33,585
Operating income			4,201				4,470				7,324				8,040
Nonoperating (income) expense, net			(342	)			2,086				1,363				4,902
Earnings before income taxes		$	4,543			$	2,384			$	5,961			$	3,138

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

		September 30,				March 31,
		2021				2021
Sterilization and Disinfection Control		$	2,187			$	2,333
Biopharmaceutical Development			3,706				4,162
Instruments			4,566				3,253
Continuous Monitoring			1,658				1,430
Total inventories		$	12,117			$	11,178

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