XML 84 R64.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note K - Rights Agreement (Detail) (USD $)
2 Months Ended 120 Months Ended 134 Months Ended
Dec. 31, 2011
Nov. 13, 2011
Dec. 31, 2012
May 31, 2011
Stock Split B (Member)
May 31, 2010
Stock Split B (Member)
Preferred Stock, Dividends Per Share, Declared (in Dollars per share)     $ 1    
Stock Split Conversion Ratio       three-for-two three-for-two
Amount Entitled To Purchase Share From Company Per Right three ten-ths (3/10,000) four ten-ths (4/10,000)      
PriceperShareEntitledToPurchaseShareFromCompanyPerRight (in Dollars per share) $ 22.22 $ 33.33      
Business Acquisition, Percentage of Voting Interests Acquired 15.00%