Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Per Share data
Jun. 30, 2011
Mar. 31, 2011
Current assets:    
Allowances on trade accounts receivable $ 16 $ 26
Stockholders' equity:    
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 10,251 10,216
Treasury stock, shares 350 350