Subsequent Event	12 Months Ended
Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Event	NOTE 16 — SUBSEQUENT EVENT On April 19, 2022, the US District Court for the District of Delaware granted judgment in favor of the Company in its trademark infringement lawsuit against air conditioning and heating products provider Emerson Quiet Kool and wholesaler Home Easy (the “defendants”). Among other things, the court order issues an injunction and directs the US Patent and Trademark Office to cancel the defendants’ existing and proposed “Emerson Quiet Kool” trademarks and prohibits defendants from registering or applying to register the same mark or any other mark or name containing the word “Emerson” going forward. The judgment also awards $6.5 million to the Company. Like any judgment, there is no guarantee that the Company will be able to collect the judgment or, if it is able to collect, how soon it will be able to do so. The Company is pursuing various post-judgment motions against defendants. The defendants have filed a notice of appeal of the judgment.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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