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EARNINGS PER COMMON SHARE (Tables) | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Years ended December 31,
(dollars in thousands, except per share amounts) |  | 2012 |  | 2011 |  | 2010
Numerator: |  |  |  |  |  |  |  |  |
Income from continuing operations |  | $ | 24,034 |  |  | $ | 18,713 |  |  | $ | 28,233 |
Less: net income attributable to participating securities |  | 466 |  |  | 384 |  |  | 389 |
Income from continuing operations net of income |  | 23,568 |  |  | 18,329 |  |  | 27,844 |
attributable to participating securities |  |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |
Preferred OP Unit distributions |  | 18 |  |  | 18 |  |  | 18 |
Numerator for diluted earnings per Common Share |  | 23,586 |  |  | 18,347 |  |  | 27,862 |
Denominator: |  |  |  |  |  |  |  |  |
Weighted average shares for basic earnings per share |  | 45,854 |  |  | 40,697 |  |  | 40,136 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Employee share options |  | 456 |  |  | 264 |  |  | 245 |
Convertible Preferred OP Units |  | 25 |  |  | 25 |  |  | 25 |
Dilutive potential Common Shares |  | 481 |  |  | 289 |  |  | 270 |
Denominator for diluted earnings per share |  | 46,335 |  |  | 40,986 |  |  | 40,406 |
Basic earnings per Common Share from continuing operations attributable to Common Shareholders |  | $ | 0.51 |  |  | $ | 0.45 |  |  | $ | 0.69 |
Diluted earnings per Common Share from continuing operations attributable to Common Shareholders |  | $ | 0.51 |  |  | $ | 0.45 |  |  | $ | 0.69 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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