Summary of Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Total Net Sales	$ 22,285,239	$ 19,054,515	$ 25,337,222	$ 23,694,753
Classic Karaoke Machines [Member]
Total Net Sales	15,018,000	11,656,000	17,040,000	15,542,000
Download Karaoke Machines [Member]
Total Net Sales	3,117,000	3,486,000	3,479,000	3,698,000
SMC Kids Toys [Member]
Total Net Sales	191,000	368,000	319,000	499,000
Music and Accessories [Member]
Total Net Sales	$ 3,959,000	$ 3,545,000	$ 4,499,000	$ 3,956,000