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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Statement Of Financial Position [Abstract]    
Allowances on trade accounts receivable $ 22 $ 46
Preferred stock, par value $ 1.00 $ 1.00
Preferred stock, shares authorized 500 500
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 25,500 25,500
Common stock, shares issued 10,430 10,409
Treasury stock, shares 311 311