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Note 15 - Income Taxes (Details) - Effective Income Tax Rate Reconciliation	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Effective Income Tax Rate Reconciliation [Abstract]
Statutory federal tax rate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State income taxes, net of federal income taxes			1.60%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Change in valuation allowance	(34.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	(35.30%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	(373.80%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Permanent tax differences	(0.10%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.30%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense	5.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
Other, net			6.00%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
			(325.70%)us-gaap_EffectiveIncomeTaxRateContinuingOperations

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Name Accounting Standards Codification

-Topic 235

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-Section S99

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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