XML 47 R3.htm IDEA: XBRL DOCUMENT v2.4.0.6
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Accounts receivable, allowance $ 389,000 $ 513,000
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, authorized 3,000 3,000
Preferred stock, issued      
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 120,000,000 120,000,000
Common stock, issued 76,164,951 76,123,940
Common stock, outstanding 63,415,349 64,361,491
Treasury stock, shares 9,861,139 8,864,767