Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Summary of Significant Accounting Policies (Textual) [Abstract]
Warranty for repairs and replacements of defective parts	1 year
Maturity of liquid investments	90 days or less
Advertising costs	$ 358,000	$ 397,000
Building [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Property and Equipment useful life	39 years
Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Cash-Based plans awards	12.50%
Minimum [Member] | Equipment [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Property and Equipment useful life	3 years
Maximum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Cash-Based plans awards	75.00%
Maximum [Member] | Equipment [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Property and Equipment useful life	10 years