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Revenue (Tables) | 12 Months Ended
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Mar. 28, 2021
Revenue [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table disaggregates external customer net sales by major revenue stream:
| Fiscal Year Ended March 28, 2021:
(In thousands) | Industrial |  | Water Treatment |  | Health and Nutrition |  | Total
Bulk / Distributed specialty products (1) | $ | 38,378 |  |  | $ | 16,067 |  |  | $ | 115,317 |  |  | $ | 169,762 |
Manufactured, blended or repackaged products (2) | 231,427 |  |  | 152,694 |  |  | 38,270 |  |  | 422,391 |
Other | 3,556 |  |  | 1,243 |  |  | (81) |  |  | 4,718 |
Total external customer sales | $ | 273,361 |  |  | $ | 170,004 |  |  | $ | 153,506 |  |  | $ | 596,871 |
| Fiscal Year Ended March 29, 2020:
(In thousands) | Industrial |  | Water Treatment |  | Health and Nutrition |  | Total
Bulk / Distributed specialty products (1) | $ | 49,864 |  |  | $ | 18,481 |  |  | $ | 90,065 |  |  | $ | 158,410 |
Manufactured, blended or repackaged products (2) | 222,161 |  |  | 139,917 |  |  | 14,770 |  |  | 376,848 |
Other | 3,199 |  |  | 1,497 |  |  | 244 |  |  | 4,940 |
Total external customer sales | $ | 275,224 |  |  | $ | 159,895 |  |  | $ | 105,079 |  |  | $ | 540,198 |
| Fiscal Year Ended March 31, 2019:
(In thousands) | Industrial |  | Water Treatment |  | Health and Nutrition |  | Total
Bulk / Distributed specialty products (1) | $ | 60,947 |  |  | $ | 21,813 |  |  | $ | 109,067 |  |  | $ | 191,827 |
Manufactured, blended or repackaged products (2) | 216,874 |  |  | 126,217 |  |  | 15,684 |  |  | 358,775 |
Other | 4,039 |  |  | 1,460 |  |  | 225 |  |  | 5,724 |
Total external customer sales | $ | 281,860 |  |  | $ | 149,490 |  |  | $ | 124,976 |  |  | $ | 556,326 |
(1)For our Industrial and Water Treatment segments, this line includes our bulk products that we do not modify in any way, but receive, store, and ship from our facilities, or direct ship to our customers in large quantities. For our Health and Nutrition segment, this line includes our non-manufactured distributed specialty products, which may be sold out of one of our facilities or direct shipped to our customers. (2)For our Industrial and Water Treatment segments, this line includes our non-bulk specialty products that we either manufacture, blend, repackage, resell in their original form, or direct ship to our customers in smaller quantities, and services we provide for our customers. For our Health and Nutrition segment, this line includes products manufactured, processed or repackaged in our facility and/or with our equipment

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- Definition Revenue [Abstract] + References No definition available. + Details
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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 + Details
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