Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2019	Mar. 31, 2018
Net Sales	$ 889,000	$ 19,452,000	$ 24,305,000	$ 1,837,000	$ 2,604,000	$ 21,462,000	$ 32,802,000	$ 3,940,000	$ 46,482,998	$ 60,808,050
Classic Karaoke Machines [Member]
Net Sales									25,100,000	38,800,000
Download Karaoke Machines [Member]
Net Sales									13,000,000	14,100,000
SMC Kids Toys [Member]
Net Sales									4,200,000	4,600,000
Music and Accessories [Member]
Net Sales									$ 4,200,000	$ 3,300,000