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	$ 23,187,519	$ 20,081,842	$ 26,511,062	$ 24,890,882
Classic Karaoke Machines [Member]
Total Net Sales	16,045,445	11,737,193	18,432,258	15,893,233
Download Karaoke Machines [Member]
Total Net Sales	3,214,493	4,005,488	3,187,553	4,146,488
SMC Kids Toys [Member]
Total Net Sales	213,144	418,716	359,933	558,716
Music and Accessories [Member]
Total Net Sales	$ 3,714,437	$ 3,920,445	$ 4,531,318	$ 4,292,445