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Earnings Per Share - (Tables) | 3 Months Ended
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Nov. 01, 2014
Earnings Per Share Disclosure [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  |  |  | Three Months Ended |  |  | Nine Months Ended
|  |  |  | November 1, 2014 |  |  | November 2, 2013 |  |  | November 1, 2014 |  |  | November 2, 2013
|  | (Dollars in thousands)
Numerator |  |  |  |  |  |  |  |  |  |  |  |
| Net earnings |  | $ | 5,692 |  | $ | 4,885 |  | $ | 51,350 |  | $ | 50,499
| Earnings allocated to non-vested equity awards |  |  | (113) |  |  | (81) |  |  | (1,001) |  |  | (818)
| Net earnings available to common stockholders |  | $ | 5,579 |  | $ | 4,804 |  | $ | 50,349 |  | $ | 49,681
Denominator |  |  |  |  |  |  |  |  |  |  |  |
| Basic weighted average common shares outstanding |  |  | 27,359,660 |  |  | 28,746,459 |  |  | 27,673,293 |  |  | 28,772,006
| Dilutive effect of stock options |  |  | 4,493 |  |  | 7,860 |  |  | 2,640 |  |  | 5,309
| Diluted weighted average common shares outstanding |  |  | 27,364,153 |  |  | 28,754,319 |  |  | 27,675,933 |  |  | 28,777,315
Net income per common share |  |  |  |  |  |  |  |  |  |  |  |
| Basic earnings per share (Class A and B Shares) |  | $ | 0.20 |  | $ | 0.17 |  | $ | 1.82 |  | $ | 1.73
| Diluted earnings per share (Class A and B Shares) |  | $ | 0.20 |  | $ | 0.17 |  | $ | 1.82 |  | $ | 1.73

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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