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Note 8 - Intangible Assets - Future Amortization Expense of Intangible Assets (Details) - USD ($)
$ in Thousands
Feb. 03, 2018
Jan. 28, 2017
2019 $ 3,020  
2020  
2021  
2022  
2023  
Thereafter  
Less: Discontinued operations (834)  
Amortization expense 2,816 $ 30,744
Purchased IP-Amortizing [Member]    
2019 2,920  
2020  
2021  
2022  
2023  
Thereafter  
Less: Discontinued operations (734)  
Amortization expense 2,186  
Developed Technology Rights [Member]    
2019  
2020  
2021  
2022  
2023  
Thereafter  
Less: Discontinued operations  
Amortization expense  
Customer Relationships [Member]    
2019  
2020  
2021  
2022  
2023  
Thereafter  
Less: Discontinued operations  
Amortization expense  
Trademarks [Member]    
2019 100  
2020  
2021  
2022  
2023  
Thereafter  
Less: Discontinued operations (100)  
Amortization expense