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Note 7 - Other Liabilities (Detail) - Changes in product warranty reserves (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Balance $ 181 $ 277
Costs incurred (291) (126)
Balance 181 176
Additions [Member]
   
Product warranty accrual period increase decrease 311 224
Adjustments [Member]
   
Product warranty accrual period increase decrease $ (20) $ (199)