Fair Value Measurements (Details) - USD ($) |
May 05, 2018 |
Feb. 03, 2018 |
|---|---|---|
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Long-term variable rate Credit Facilities | $ 70,530,000 | $ 73,899,000 |
| Long-term credit facilities, current maturities | 2,326,000 | 2,326,000 |
| Level 2 [Member] | ||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Bank certificates of deposit | 450,000 | 450,000 |
| Long-term variable rate Credit Facilities | 70,530,000 | 73,899,000 |
| Level 3 [Member] | ||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Level 3 investments | $ 0 | $ 0 |