| EARNINGS PER COMMON SHARE [Text Block] |
The following table sets forth the comparison of basic and diluted earnings per common share: | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, | | Six months ended June 30, | | | | 2013 | | 2012 | | 2013 | | 2012 | | | | | | | | | | | | | Basic earnings per common share | | | | | | | | | | Net income | $ | 83,725 |
| | $ | 189,066 |
| | $ | 395,280 |
| | $ | 324,905 |
| | | Less: preferred shares dividends | 8,197 |
| | 11,527 |
| | 16,938 |
| | 20,746 |
| | | Less: loss on repurchase of preferred shares | 3,081 |
| | 9,387 |
| | 3,081 |
| | 14,009 |
| | | Net income available to common shareholders | 72,447 |
| | 168,152 |
| | 375,261 |
| | 290,150 |
| | | Weighted average common shares outstanding - basic | 115,163 |
| | 123,823 |
| | 116,088 |
| | 124,802 |
| | | Basic earnings per common share | $ | 0.63 |
| | $ | 1.36 |
| | $ | 3.23 |
| | $ | 2.32 |
| | | | | | | | | | | | | Diluted earnings per common share | | | | | | | | | | Net income available to common shareholders | $ | 72,447 |
| | $ | 168,152 |
| | $ | 375,261 |
| | $ | 290,150 |
| | | | | | | | | | | | | Weighted average common shares outstanding - basic | 115,163 |
| | 123,823 |
| | 116,088 |
| | 124,802 |
| | | Stock compensation plans | 1,508 |
| | 1,160 |
| | 1,572 |
| | 1,023 |
| | | Weighted average common shares outstanding - diluted | 116,671 |
| | 124,983 |
| | 117,660 |
| | 125,825 |
| | | | | | | | | | | | | Diluted earnings per common share | $ | 0.62 |
| | $ | 1.35 |
| | $ | 3.19 |
| | $ | 2.31 |
| | | | | | | | | | | | | Anti-dilutive shares excluded from the dilutive computation | 35 |
| | 539 |
| | 473 |
| | 1,220 |
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