Income Taxes (Schedule of Significant Components of Company's Current and Noncurrent Deferred Tax Assets and Liabilities) (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015
Current deferred tax assets:
Allowance for doubtful accounts	$ 60,209	$ 50,425
Inventory capitalization	30,364	36,361
Inventory reserves	18,310	22,475
Current deferred tax assets	108,883	109,261
Noncurrent deferred tax assets (liabilities):
Equipment and improvements	10,024	13,725
License, trademarks and other intangible assets	2,582	2,942
Noncurrent deferred tax assets (liabilities)	12,606	16,667
Total deferred income tax assets	$ 121,489	$ 125,928