XML 65 R21.htm IDEA: XBRL DOCUMENT

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	Note O – Subsequent Events On April 6, 2012, the company received a Private Letter Ruling from the IRS, granting the company permission to elect a repairs and maintenance accounting method change and carryback the associated tax losses to its 2006 tax year. However, the company does not anticipate receiving the incremental tax refund from this claim until the imputed royalty dispute with the IRS has been resolved.