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Income Taxes (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2019 | Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Income Tax Disclosure [Abstract] |  |  |  |
Deferred Tax Assets, Tax Credit Carryforwards | $ 26,523,000 | $ 3,897,000 |  |
Deferred Tax Assets, Valuation Allowance | $ 232,000 | $ 241,000 | $ 417,000 | $ 1,151,000
Valuation Allowance, Methodologies and Assumptions | $9,000 | $176,000 | $734,000 |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 33.80% | 35.00% |
Deferred Other Tax Expense (Benefit) | $ (14,362,000) |  |  |
Tax Adjustments, Settlements, and Unusual Provisions | 272,000 |  |  |
Tax Credit Carryforward, Amount | 21,200,000 | $ 11,500,000 |  |
Deferred Federal, State and Local, Tax Expense (Benefit) | 4,600,000 |  |  |
Income Taxes Paid | 855,000 | 6,920,000 | $ 7,090,000 |
Proceeds from Income Tax Refunds | 1,132,000 | 476,000 | 150,000 |
Unrecognized Tax Benefits | 8,785,000 | $ 2,325,000 | $ 2,096,000 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 447,000 |  |  |
Increase (Decrease) in Provision For Income Taxes | $ (8,304,000) |  |  |

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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=115928272&loc=d3e28511-109314 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=115928272&loc=d3e28446-109314 + Details
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