Income Taxes (Components of Net Deferred Income Tax Assets and Liabilities) (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Net operating loss carryforward	$ 11,222,477	$ 10,882,593
Executive post retirement costs	318,743	305,769
General business credit	207,698	207,698
Allowance for doubtful accounts	68,910	78,385
Accrued vacation	105,816	116,418
Inventory reserve	67,361	67,361
Accelerated depreciation	16,340	34,878
Warranty reserve	10,907	10,907
Total deferred income tax assets	12,018,252	11,704,009
Valuation allowance	(11,913,221)	(11,629,396)
Deferred income tax liabilities:
Deferred Tax Assets, Net of Valuation Allowance	105,031	74,613
Deferred Tax Liabilities, Property, Plant and Equipment	105,031	74,613
Deferred Tax Liabilities, Gross	105,031	74,613
Deferred Tax Assets, Net	$ 0	$ 0