Commitments and Contingencies (Tables)

3 Months Ended

Sep. 30, 2012

Commitments and Contingencies [Abstract]

Schedule of changes in product liability included in accrued liabilities

The warranty liability is included in other current liabilities in the unaudited balance sheet.  The change in the warranty liability for the three months ended September 30, 2012 is summarized in the following table:

Balance at July 1, 2012	$	547,000
Warranties issued during the period		25,000
Settlements made during the period		(103,000	)
Changes in liability for pre-existing warranties during the period, including expirations		93,000
Balance at September 30, 2012	$	562,000