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Inventories (Details) (USD $)
Jun. 30, 2013
Jun. 30, 2012
Inventories [Abstract]    
Raw materials $ 10,684,000 $ 10,410,000
Work in process and finished parts 5,410,000 5,288,000
Finished goods 76,323,000 66,991,000
Total inventories 92,417,000 82,689,000
Inventories valued on the FIFO method 1,700,000  
Inventories valued on the LIFO method $ 2,600,000 $ 2,900,000