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Note 12 - Segment Information (Tables)

3 Months Ended

Jun. 30, 2021

Notes Tables

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

		Three Months Ended June 30,
		2021				2020
Total revenues (a)
Sterilization and Disinfection Control		$	15,150			$	13,067
Biopharmaceutical Development			8,877				5,949
Instruments			7,562				7,680
Continuous Monitoring			3,331				3,245
Total revenues (a)		$	34,920			$	29,941
Gross profit (loss)
Sterilization and Disinfection Control		$	11,428			$	10,021
Biopharmaceutical Development			4,692				4,466
Instruments			4,660				4,688
Continuous Monitoring			1,452				1,185
Reportable segment gross profit			22,232				20,360
Corporate and Other (b)			(21	)			(20	)
Gross profit		$	22,211			$	20,340
Reconciling Items:
Operating expenses			19,088				16,770
Operating income			3,123				3,570
Nonoperating expense, net			1,705				2,816
Earnings before income taxes		$	1,418			$	754

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

		June 30,				March 31,
		2021				2021
Sterilization and Disinfection Control		$	2,254			$	2,333
Biopharmaceutical Development			4,907				4,162
Instruments			3,304				3,253
Continuous Monitoring			1,657				1,430
Total inventories		$	12,122			$	11,178

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