| Note 13 - Related Party Transaction | 12 Months Ended | 
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| Apr. 01, 2018 | |
| Notes to Financial Statements | |
| Related Party Transactions Disclosure [Text Block] | Note  13  – Related Party Transaction On   August 4, 2017, Carousel entered into a lease of the Carousel facilities with JST Capital, LLC (“JST”), a wholly-owned subsidiary of Pritech, Inc., which is owned by the Chief Executive Officer and President of Carousel. Carousel made lease payments of $63,000to JST during fiscal year 2018, $55,000of which was included in cost of products sold and $8,000of which was included in marketing and administrative expenses in the accompanying consolidated statements of income. | 
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- References No definition available. 
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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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