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Note 8 - Stockholders' Equity - Changes in Stockholders' Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2022
May 01, 2021
Balance $ 93,683 $ 67,308
Shares issued under employee stock plans 540 579
Stock-based compensation 428 551
Shares withheld in lieu of tax withholdings 2,179 924
Other (4) 0
Share Repurchase (8,138) 0
Other comprehensive income 18 83
Net income 14,190 10,380
Balance, ending 98,539 77,977
Common Stock [Member]    
Balance 162 159
Shares issued under employee stock plans 2 5
Stock-based compensation
Shares withheld in lieu of tax withholdings 1 1
Other
Share Repurchase (6)
Other comprehensive income
Net income
Balance, ending 157 163
Additional Paid-in Capital [Member]    
Balance [1] 75,490 72,822
Shares issued under employee stock plans [1] 538 574
Stock-based compensation [1] 428 551
Shares withheld in lieu of tax withholdings [1] 2,178 923
Other [1] (4)
Share Repurchase [1] (2,313)
Other comprehensive income [1]
Net income [1]
Balance, ending [1] 71,962 73,024
AOCI Attributable to Parent [Member]    
Balance [2] (12,470) (12,615)
Shares issued under employee stock plans [2]
Stock-based compensation [2]
Shares withheld in lieu of tax withholdings [2]
Other [2]
Share Repurchase [2]
Other comprehensive income [2] 18 83
Net income [2]
Balance, ending [2] (12,452) (12,532)
Retained Earnings [Member]    
Balance 30,501 6,942
Shares issued under employee stock plans
Stock-based compensation
Shares withheld in lieu of tax withholdings
Other
Share Repurchase (5,819)
Other comprehensive income
Net income 14,190 10,380
Balance, ending $ 38,872 $ 17,322
[1] Additional paid-in capital (“APIC”)
[2] Accumulated other comprehensive income (loss) (“AOCI”)