Summary of Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Total Net Sales	$ 16,972,603	$ 13,857,576	$ 42,309,825	$ 37,552,329
Classic Karaoke Machines [Member]
Total Net Sales	8,296,000	9,223,000	25,320,000	26,980,000
Download Karaoke Machines [Member]
Total Net Sales	3,898,000	3,254,000	7,314,000	5,163,000
SMC Kids Toys [Member]
Total Net Sales	609,000	306,000	1,003,000	911,000
Music and Accessories [Member]
Total Net Sales	$ 4,170,000	$ 1,075,000	$ 8,673,000	$ 4,498,000