XML 22 R18.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock Repurchase Program (Details Textual) (USD $)
Share data in Millions, unless otherwise specified
1 Months Ended 9 Months Ended 18 Months Ended
Aug. 31, 2011
Oct. 27, 2012
Oct. 27, 2012
Stock Repurchase Program (Textual) [Abstract]      
Stock repurchase plan authorized amount $ 40,000,000    
Shares repurchased and retired     3.4
Cost of shares repurchased and retired   $ 16,622,000 $ 40,000,000