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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2012
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following tables set forth the computation of basic and diluted earnings per share.
| Three Months Ended
| September 30, 2012 |  | September 30, 2011
| (In thousands, except per share amounts)
Basic and diluted earnings per share: |  |  |
Numerator: |  |  |
Net income | $ | 2,911 |  |  | 2,053 |
Net income allocated to Class A common stock | $ | 2,881 |  |  | 2,032 |
Net income allocated to Class B common stock | 30 |  |  | 21 |
Net income | $ | 2,911 |  |  | 2,053 |
Denominator: |  |  |  |  |
Weighted average shares of Class A outstanding - basic | 49,019 |  |  | 48,912 |
Weighted average shares of Class A outstanding - diluted | 49,030 |  |  | 48,912 |
Weighted average shares of Class B outstanding - basic and diluted | 1,002 |  |  | 1,002 |
Basic earnings per share of Class A common stock | $ | 0.06 |  |  | 0.04 |
Basic earnings per share of Class B common stock | 0.03 |  |  | 0.02 |
Diluted earnings per share of Class A common stock | 0.06 |  |  | 0.04 |
Diluted earnings per share of Class B common stock | 0.03 |  |  | 0.02 |
| Nine Months Ended
| September 30, 2012 |  | September 30, 2011
| (In thousands, except per share amounts)
Basic and diluted earnings per share: |  |  |
Numerator: |  |  |
Net income | $ | 4,826 |  |  | 6,684 |
Net income allocated to Class A common stock | $ | 4,777 |  |  | 6,616 |
Net income allocated to Class B common stock | 49 |  |  | 68 |
Net income | $ | 4,826 |  |  | 6,684 |
Denominator: |  |  |
Weighted average shares of Class A outstanding - basic | 48,962 |  |  | 48,762 |
Weighted average shares of Class A outstanding - diluted | 48,972 |  |  | 48,764 |
Weighted average shares of Class B outstanding - basic and diluted | 1,002 |  |  | 1,002 |
Basic earnings per share of Class A common stock | $ | 0.10 |  |  | 0.13 |
Basic earnings per share of Class B common stock | 0.05 |  |  | 0.07 |
Diluted earnings per share of Class A common stock | 0.10 |  |  | 0.13 |
Diluted earnings per share of Class B common stock | 0.05 |  |  | 0.07 |

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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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