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Note 5 - Stock-based Compensation - Activity for Time-based and Performance-based Restricted Stock (Details)	9 Months Ended
	Nov. 03, 2018 $ / shares shares
Restricted Stock [Member]
Outstanding, beginning of period (in shares) | shares	357,412
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 10.96
Granted (in shares) | shares	205,434
Granted (in dollars per share) | $ / shares	$ 8.67
Vested (in shares) | shares	(177,960)
Vested (in dollars per share) | $ / shares	$ 11.82
Forfeited (in shares) | shares	(1,391)
Forfeited (in dollars per share) | $ / shares	$ 13.64
Canceled or expired (in shares) | shares
Canceled or expired (in dollars per share) | $ / shares
Outstanding, end of period (in shares) | shares	383,495
Outstanding, end of period (in dollars per share) | $ / shares	$ 9.33
Performance Shares [Member]
Outstanding, beginning of period (in shares) | shares	289,615
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 13.66
Granted (in shares) | shares	83,256
Granted (in dollars per share) | $ / shares	$ 8.60
Vested (in shares) | shares	(6,323)
Vested (in dollars per share) | $ / shares	$ 20.58
Forfeited (in shares) | shares	(1,280)
Forfeited (in dollars per share) | $ / shares	$ 13.69
Canceled or expired (in shares) | shares	(50,000)
Canceled or expired (in dollars per share) | $ / shares	$ 20.80
Outstanding, end of period (in shares) | shares	315,268
Outstanding, end of period (in dollars per share) | $ / shares	$ 11.05

X

- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that expired during the period.

+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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-Paragraph 2
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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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X

- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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