Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Accounting Policies [Line Items]      
Deferred Revenue $ 429,000 $ 480,000  
Cash and cash equivalents 20,000 812,000 240,000
Product warranty liability 11,000 12,000  
Obsolete inventory $ 77,000 $ 26,000  
Anti-dilutive options and warrants 3,664,000 2,386,622  
Weighted average number of common shares outstanding - basic and diluted   36,904,769