Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2018

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

The following table summarizes securities that, if exercised would have an anti-dilutive effect on earnings per share.



	For the Year Ended June 30,	For the Year Ended June 30,
	2018	2017
Stock options	367,500	502,000
Total potential dilutive securities not included in income per share	367,500	502,000

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



	For the Year Ended June 30,		For the Year Ended June 30,
	2018		2017
Numerator:
Numerator for basic earnings per share
Net income (loss)	$	583,675	$	(726,895	)
Undeclared dividends on preferred stock	19,368		—
Net income (loss) applicable to common shareholders	$	564,307	$	(726,895	)
Numerator for diluted earnings per share:
Net income (loss) applicable to common shareholders	$	564,307	$	(726,895	)
Undeclared dividends on preferred stock	19,368		—
Net income (loss)	$	583,675	$	(726,895	)
Denominator:
Denominator for basic earnings per share - weighted average shares outstanding	7,551,057		7,551,430
Weighted average preferred stock converted to common stock	1,590,411		—
Denominator for diluted earnings per share - weighted average and assumed conversion	9,141,468		7,551,430

Net income (loss) per share
Basic net income (loss) per share	$	0.07	$	(0.10	)
Diluted net income (loss) per share	$	0.06	$	(0.10	)

Schedule of Composition of Inventory

Raw materials, work in process and finished goods are recorded at lower of cost (first-in, first-out) or net realizable value. The composition of inventory, net is as follows:



	For the years ended June 30,
	2018		2017
Raw materials	$	652,613	$	864,813
Work in process	192,287		336,934
Finished goods	978,514		716,191
Total inventory	$	1,823,414	$	1,917,938

Schedule of Inventory Allowance

Valuation allowance activity for the years ended June 30, 2018 and 2017 was as follows:



	For the years ended June 30,
	2018		2017
Balance, July 1	$	347,014	$	198,120
Provision for valuation allowance	114,000		150,000
Write-off	—		(1,106		)
Balance, June 30	$	461,014	$	347,014

Schedule of Allowance for Doubtful Accounts

Allowance for doubtful accounts activity for the years ended June 30, 2018 and 2017 was as follows:



	June 30,
	2018			2017
Balance, July 1	$	172,120		$	202,667
Recovery in bad debts	(45,593		)	—
Write-offs	(7,597		)	(30,547		)
Balance, June 30	$	118,930		$	172,120

Schedule of Property, Plant and Equipment

Property and equipment consist of the following at:



	June 30,
	2018			2017
Equipment	$	701,848		$	695,311
Furniture and fixtures	143,330			99,321
Leasehold improvement	28,549			28,549
	873,727			823,181
Less: Accumulated depreciation and amortization	(797,459		)	(768,289		)
	$	76,268		$	54,892