Summary of Significant Accounting Policies (New Accounting Pronouncements) (Details) $ in Thousands |
3 Months Ended |
|---|---|
|
May 05, 2018
USD ($)
| |
| Significant Accounting Policies [Line Items] | |
| Cumulative Effect on Retained Earnings, Net of Tax | $ 486 |
| Retained Earnings [Member] | |
| Significant Accounting Policies [Line Items] | |
| Cumulative Effect on Retained Earnings, Net of Tax | 486 |
| Retained Earnings [Member] | |
| Significant Accounting Policies [Line Items] | |
| Cumulative Effect on Retained Earnings, Net of Tax | $ 486 |