Annual report pursuant to Section 13 and 15(d)

Balance Sheets (Parenthetical)

v2.4.0.6
Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Balance Sheets [Abstract]    
Customer receivables, allowances $ 9,173 $ 8,475
Common stock, par value $ 0.1 $ 0.1
Common stock, shares authorized 70,000,000 70,000,000
Common stock, shares outstanding 57,443,324 55,926,945