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Warranty Liability (Schedule Of Warranty Liability) (Details) (USD $)
6 Months Ended 12 Months Ended
Dec. 31, 2013
Jun. 30, 2013
Warranty Liability [Abstract]    
Beginning warranty reserve $ 680,000 $ 610,000
Accrual for products sold 103,000 232,000
Expenditures and costs incurred for warranty claims (83,000) (162,000)
Ending warranty reserve $ 700,000 $ 680,000