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Segment Information
9 Months Ended
Dec. 26, 2021
Segment Reporting [Abstract]  
Segment Information Segment Information
We have three reportable segments: Industrial, Water Treatment, and Health and Nutrition. The accounting policies of the segments are the same as those described in the summary of significant accounting policies in our Annual Report on Form 10-K for the fiscal year ended March 28, 2021.
We evaluate performance based on profit or loss from operations before income taxes not including nonrecurring gains and losses. Reportable segments are defined primarily by product and type of customer. Segments are responsible for the sales, marketing and development of their products and services. We allocate certain corporate expenses to our operating segments. There are no intersegment sales and no operating segments have been aggregated. No single customer’s revenues amounted to 10% or more of our total revenue. Sales are primarily within the United States and all assets are located within the United States.
 
(In thousands)IndustrialWater
Treatment
Health and NutritionTotal
Three months ended December 26, 2021:
Sales$100,554 $49,756 $36,740 $187,050 
Gross profit15,303 11,103 7,534 33,940 
Selling, general, and administrative expenses7,367 8,254 4,060 19,681 
Operating income7,936 2,849 3,474 14,259 
Three months ended December 27, 2020:
Sales$64,356 $39,298 $39,273 $142,927 
Gross profit9,207 10,027 9,005 28,239 
Selling, general, and administrative expenses6,978 6,788 3,984 17,750 
Operating income 2,229 3,239 5,021 10,489 
Nine months ended December 26, 2021:
Sales$269,572 $168,105 $113,891 $551,568 
Gross profit42,121 44,855 23,225 110,201 
Selling, general and administrative expenses20,064 22,721 11,431 54,216 
Operating income22,057 22,134 11,794 55,985 
Nine months ended December 27, 2020:
Sales$197,029 $128,552 $108,319 $433,900 
Gross profit32,100 35,888 24,024 92,012 
Selling, general and administrative expenses19,474 17,654 11,881 49,009 
Operating income 12,626 18,234 12,143 43,003 

No significant changes to identifiable assets by segment occurred during the nine months ended December 26, 2021.