Summary of Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Net Sales	$ 15,519,516	$ 19,452,450	$ 40,410,398	$ 45,593,906
Classic Karaoke Machines [Member]
Net Sales	10,336,078	10,740,373	29,067,908	28,014,115
Download Karaoke Machines [Member]
Net Sales	3,636,057	7,343,426	5,534,065	12,750,096
SMC Kids Toys [Member]
Net Sales	339,577	334,150	967,939	2,036,623
Music and Accessories [Member]
Net Sales	$ 1,207,804	$ 1,034,501	$ 4,840,486	$ 2,793,072

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Balance Type:	credit
Period Type:	duration