Note 2 - Cash, Cash Equivalents and Marketable Securities - Schedule of Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Apr. 29, 2017 |
Jan. 28, 2017 |
Apr. 30, 2016 |
Jan. 30, 2016 |
|
| Book Value | $ 8,528 | $ 8,501 | ||
| Net Unrealized Gains | (3) | (5) | ||
| Fair Value | 8,525 | 8,496 | ||
| Fair value - cash on hand | 65,953 | 62,710 | ||
| Total cash, cash equivalents and marketable securities | 74,478 | 71,206 | ||
| Cash and cash equivalents | 71,697 | 66,425 | $ 56,328 | $ 63,790 |
| Short-term marketable securities | 2,781 | 4,781 | ||
| UNITED STATES | ||||
| Fair value - cash on hand | 4,583 | 9,378 | ||
| Overseas [Member] | ||||
| Fair value - cash on hand | 61,370 | 53,332 | ||
| Money Market Funds [Member] | ||||
| Book Value | 5,744 | 3,715 | ||
| Net Unrealized Gains | ||||
| Fair Value | 5,744 | 3,715 | ||
| Corporate Bond Securities [Member] | ||||
| Book Value | 1,500 | 3,506 | ||
| Net Unrealized Gains | (1) | |||
| Fair Value | 1,500 | 3,505 | ||
| Fixed Income Funds [Member] | ||||
| Book Value | 1,284 | 1,280 | ||
| Net Unrealized Gains | (3) | (4) | ||
| Fair Value | $ 1,281 | $ 1,276 |