Note 9 - Notes Payable	3 Months Ended
Mar. 31, 2013
Long-term Debt [Text Block]	9. Notes Payable During March 2008, the Company obtained a Mexican peso (“MXN”) 1.0 billion term loan, which bore interest at a fixed rate of 8.58%, subject to change in accordance with the Company’s senior debt ratings, and was scheduled to mature in March 2013. During March 2013, the Company repaid this term loan and entered into a new five year 1.0 billion MXN term loan which matures in March 2018. This term loan bears interest at a rate equal to TIIE (Equilibrium Interbank Interest Rate) plus 1.35% (6.13% as of March 31, 2013). The Company has the option to swap this rate to a fixed rate at any time during the term of the loan. As of March 31, 2013, the outstanding balance on this new term loan was MXN 1.0 billion (USD $80.9 million). During January 2013, the Company repaid the $100.0 million outstanding on its 6.125% senior unsecured notes, which matured in January 2013.

Note 9 - Notes Payable

3 Months Ended

Mar. 31, 2013

9. Notes Payable

During March 2008, the Company obtained a Mexican peso (“MXN”) 1.0 billion term loan, which bore interest at a fixed rate of 8.58%, subject to change in accordance with the Company’s senior debt ratings, and was scheduled to mature in March 2013. During March 2013, the Company repaid this term loan and entered into a new five year 1.0 billion MXN term loan which matures in March 2018. This term loan bears interest at a rate equal to TIIE (Equilibrium Interbank Interest Rate) plus 1.35% (6.13% as of March 31, 2013). The Company has the option to swap this rate to a fixed rate at any time during the term of the loan. As of March 31, 2013, the outstanding balance on this new term loan was MXN 1.0 billion (USD $80.9 million).

During January 2013, the Company repaid the $100.0 million outstanding on its 6.125% senior unsecured notes, which matured in January 2013.