Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	$ 36,817	$ 54,019
Restricted cash	1,775	1,769
Derivative instruments	35	438
Total assets/liabilities measured at fair value	38,627	56,226
Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	36,817	54,019
Restricted cash	1,775	1,769
Total assets/liabilities measured at fair value	38,592	55,788
Fair Value, Inputs, Level 2 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative instruments	35	438
Total assets/liabilities measured at fair value	35	438
Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	21,494	31,179
Corporate Bond Securities [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	21,494	31,179
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	13,521	21,032
Money Market Funds [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	13,521	21,032
Municipal Bonds and Notes [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	508	529
Municipal Bonds and Notes [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	508	529
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	1,294	1,279
Fixed Income Funds [Member]
Note 3 - Fair Values of Assets and Liabilities (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Cash equivalents and short-term investments	$ 1,294	$ 1,279