(6) Warranty Reserve (Details) - USD ($)	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Warranty Reserve
Beginning warranty reserve	$ 205,850	$ 202,000
Warranty costs incurred	(87,848)	(122,708)
Warranty expense accrued	89,986	120,524
Warranty reserve assumed in the Acquisition	0	5,000
Changes in estimated warranty costs	0	1,034
Ending warranty reserve	$ 207,988	$ 205,850

No definition available.

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- Definition

Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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- Definition

Amount of valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

+ Details

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- Definition

Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

+ References

+ Details

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- Definition

Amount of decrease in valuation and qualifying accounts and reserves.

+ References

+ Details

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- Definition

Amount of increase in valuation and qualifying accounts and reserves from business combination.

+ References

+ Details

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