2. BUSINESS ACQUISITION (Details - Allocation of purchase price) - USD ($)	Jun. 30, 2019	Jun. 01, 2019	Jun. 30, 2018
Goodwill	$ 687,664		$ 0
Ross Optical Industries [Member]
Cash and cash equivalents		$ 163,204
Trade accounts receivable, net		652,898
Inventories		728,046
Other current assets		2,889
Fixed assets		232,036
Total Assets Acquired		1,779,073
Accounts payable		401,360
Customer advances		24,350
Accrued compensation and other		41,027
Total Liabilities Assumed		466,737
Net assets acquired		1,312,336
Goodwill		687,664
Total Purchase Price-Initial and Contingent Consideration		$ 2,000,000

Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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