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Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2012
Mar. 31, 2012
Accounts Receivable, allowance for doubtful accounts (in Dollars) $ 97 $ 99
Common Stock, par value per share (in Dollars per share) $ 0.50 $ 0.50
Common Stock, shares authorized 30,000,000 30,000,000
Common Stock, shares issued 7,905,461 7,840,994
Common Stock, shares outstanding 7,406,679 7,341,007
Treasury Stock, shares 498,782 498,782