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Note 16 - Earnings Per Share (Tables) | 12 Months Ended
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Jan. 31, 2020
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Year Ended |  |  | January 31, 2020 |  |  |  | January 31, 2019 |  |  |  | January 31, 2018 |
Net income for purposes of calculating basic and diluted earnings per share |  |  | 36,997 |  |  |  | 31,277 |  |  |  | 26,879 |
Weighted average shares outstanding |  |  | 81,659 |  |  |  | 76,832 |  |  |  | 76,324 |
Dilutive effect of employee stock options |  |  | 318 |  |  |  | 205 |  |  |  | 167 |
Dilutive effect of restricted and performance share units |  |  | 890 |  |  |  | 754 |  |  |  | 621 |
Weighted average common and common equivalent shares outstanding |  |  | 82,867 |  |  |  | 77,791 |  |  |  | 77,112 |
Earnings per share |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 0.45 |  |  |  | 0.41 |  |  |  | 0.35 |
Diluted |  |  | 0.45 |  |  |  | 0.40 |  |  |  | 0.35 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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