Accrued expense (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Payables and Accruals [Abstract]
Employee-related Liabilities, Current	$ 417,829	$ 396,609
Interest Payable	1,224	1,013
Customer Deposits, Current	14,320	16,006
Product Warranty Accrual, Current	32,078	32,078
Sales and Excise Tax Payable	100,176	100,582
Accrued Rent	0	70,587
Other Accrued Liabilities, Current	115,420	39,832
Accrued Liabilities, Current	$ 681,047	$ 656,707

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax.

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