Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2019

Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table summarizes convertible preferred stock and securities that, if exercised would have an anti-dilutive effect

on earnings per share.

	For the years ended June 30,
	2019	2018
Stock options	213,000	367,500
Convertible preferred stock	4,773,120	—
Total potential dilutive securities not included in income per share	4,986,120	367,500

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the years ended June 30,
	2019				2018
Numerator:
Numerator for basic earnings (loss) per share:
Net (loss) income	$	(250,016	)		$	583,675
Undeclared dividends on preferred stock	51,600				19,368
Net (loss) income applicable to common shareholders	$	(301,616	)		$	564,307
Numerator for diluted earnings per share:
Net (loss) income applicable to common shareholders	$	(301,616	)		$	564,307
Undeclared dividends on preferred stock	51,600				19,368
Net (loss) income	$	(250,016	)		$	583,675
Denominator:
Denominator for basic earnings (loss) per share - weighted average shares outstanding	7,415,329				7,551,057
Weighted average preferred stock converted to common stock	—				1,590,411
Denominator for diluted earnings (loss) per share - weighted average and assumed conversion	7,415,329			—	9,141,468
Net (loss) income per share:
Basic net (loss) income per share	$	(0.04	)		$	0.07
Diluted net (loss) income per share	$	(0.04	)		$	0.06

	For the years ended June 30,
	2019				2018
Numerator:
Numerator for basic earnings (loss) per share:
Net (loss) income	$	(250,016	)		$	583,675
Undeclared dividends on preferred stock	51,600				19,368
Net (loss) income applicable to common shareholders	$	(301,616	)		$	564,307
Numerator for diluted earnings per share:
Net (loss) income applicable to common shareholders	$	(301,616	)		$	564,307
Undeclared dividends on preferred stock	51,600				19,368
Net (loss) income	$	(250,016	)		$	583,675
Denominator:
Denominator for basic earnings (loss) per share - weighted average shares outstanding	7,415,329				7,551,057
Weighted average preferred stock converted to common stock	—				1,590,411
Denominator for diluted earnings (loss) per share - weighted average and assumed conversion	7,415,329			—	9,141,468
Net (loss) income per share:
Basic net (loss) income per share	$	(0.04	)		$	0.07
Diluted net (loss) income per share	$	(0.04	)		$	0.06

Schedule of Inventory, Current [Table Text Block]

	For the years ended June 30,
	2019		2018
Raw materials	$	874,985	$	652,613
Work in process	225,254		192,287
Finished goods	778,621		978,514
Total inventories	$	1,878,860	$	1,823,414

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2019		2018
Statutory federal income tax rate	21.00	%	34.00	%
Permanent differences	0.00	%	(0.51	)%
Tax Act-revaluation of net deferred tax assets	0.00	%	(33.49	)%
Valuation allowance	(21.00	)%	0.00	%
Effective income tax rate	0.00	%	0.00	%