Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6510090

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(a)(4))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section S99
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Note 1 - Basis of Presentation and Recent Accounting Pronouncements (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2016	Feb. 01, 2016	Jan. 31, 2016
Effect of Recognition of Excess Tax Benenfits in Income Taxes Rather Than Additional Paid-in Capital [Member]
Deferred Tax Assets, Gross		$ 2,200
Deferred Tax Assets, Valuation Allowance		1,200
Retained Earnings (Accumulated Deficit)		1,000
Effect of Accounting Forfeitures as Occur [Member]
Retained Earnings (Accumulated Deficit)		$ 400
Increase in Cash Provided By Operating Activities, and a Decrease in Cash Used in Financing Activities [Member] \| July 31, 2016 [Member]
Prior Period Reclassification Adjustment	$ 300
Retained Earnings (Accumulated Deficit)	$ (44,637)		$ (40,376)