Income Taxes (Details 2) - USD ($)	Jun. 30, 2018	Jun. 30, 2017
Deferred tax assets
Bad debts	$ 25,500	$ 38,500
Intangible assets	2,530	4,620
Accrued liabilities	257,692	347,079
Accrued pension liability	0	18,031
Stock options	30,411	52,211
Net operating loss and credit carryforwards	3,511,943	4,554,491
Total Assets	3,828,076	5,014,932
Deferred tax liabilities
Prepaid expenses	11,606	9,179
Inventory	697,669	1,057,326
Depreciation	317,360	628,017
Other	81,186	84,328
Total Liabilities	1,107,821	1,778,850
Valuation Allowance	(2,199,592)	(2,552,319)
Total deferred taxes	$ 520,663	$ 683,763