Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Federal net operating loss carryforward	$ 263,231	$ 476,003
State net operating loss carryforward	289,584	242,418
AMT credit carryforward	92,723	139,754
Inventory differences	190,327	436,695
Allowance for doubtful accounts	18,462	46,837
Reserve for sales returns	55,505	79,026
Stock option compensation expense	104,676	93,178
Accrued expenses	30,017	46,589
Total deferred tax assets	1,044,525	1,560,500
Depreciation	(76,364)	(81,291)
Prepaid expenses	(31,024)
Net deferred tax assets	$ 937,137	$ 1,479,209