XML 30 R3.htm IDEA: XBRL DOCUMENT v2.4.0.6
CONDENSED BALANCE SHEETS (Parentheticals) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Treasury stock, shares 4,299,434 4,299,434 [1]
Nonvoting Common Stock
    
Common Stock,par value (in dollars per share) 1 1 [1]
Common Stock, authorized shares 50,000 50,000 [1]
Common Stock, issued shares       [1]
Voting Common Stock
    
Common Stock,par value (in dollars per share) 1 1 [1]
Common Stock, authorized shares 40,000,000 40,000,000 [1]
Common Stock, issued shares 23,459,506 23,382,566 [1]
Common Stock, outstanding shares 19,160,072 19,083,132 [1]
[1] Note: The balance sheet at December 31, 2011 has been derived from the audited financial statements at that date but does not include all the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements.