Preferred Stock	3 Months Ended
Apr. 30, 2012
Preferred Stock [Abstract]
Preferred Stock	O. Preferred Stock The Company declared and paid Series A preferred stock dividends of $3,850,000 during both the three months ended April 30, 2012 and 2011. Undeclared Series A preferred stock dividends were $1,925,000 at April 30, 2012. Effective May 1, 2012, the Company’s Board of Directors declared cash dividends on the outstanding shares of Series A preferred stock of approximately $3,850,000 for the period from March 15, 2012 to June 14, 2012 to shareholders of record at the close of business on June 1, 2012, which will be paid on June 15, 2012.

Preferred Stock

3 Months Ended

Apr. 30, 2012

O. Preferred Stock

The Company declared and paid Series A preferred stock dividends of $3,850,000 during both the three months ended April 30, 2012 and 2011. Undeclared Series A preferred stock dividends were $1,925,000 at April 30, 2012. Effective May 1, 2012, the Company’s Board of Directors declared cash dividends on the outstanding shares of Series A preferred stock of approximately $3,850,000 for the period from March 15, 2012 to June 14, 2012 to shareholders of record at the close of business on June 1, 2012, which will be paid on June 15, 2012.