Taxes (Details 1) - USD ($)	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Allowance for doubtful accounts	$ 129,742	$ 42,207
Deferred revenue	83,876	44,149
Net operating loss carry-forwards	402,876	233,918
Total deferred tax asset	616,494	320,274
Valuation allowance	(213,028)	(2,892)
Deferred tax assets, net	$ 403,466	$ 317,382

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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