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Note 11 - Income (Loss) Per Share (Details) - Distributed and Undistributed Earnings (USD $)

3 Months Ended

12 Months Ended

Dec. 28, 2014

Sep. 28, 2014

Jun. 29, 2014

Mar. 30, 2014

Dec. 29, 2013

Sep. 29, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 28, 2014

Dec. 29, 2013

Dec. 30, 2012

Basic earnings per share

$ 0.37us-gaap_IncomeLossFromContinuingOperationsPerBasicShare

$ 0.73us-gaap_IncomeLossFromContinuingOperationsPerBasicShare

$ 0.35us-gaap_IncomeLossFromContinuingOperationsPerBasicShare

Diluted earnings per share

$ 0.37us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare

$ 0.73us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare

$ 0.35us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare

Basic earnings per share

$ 0.23us-gaap_EarningsPerShareBasic

^[1]

$ 0.23us-gaap_EarningsPerShareBasic

$ 0.17us-gaap_EarningsPerShareBasic

$ 0.11us-gaap_EarningsPerShareBasic

$ 0.12us-gaap_EarningsPerShareBasic

^[2]

$ (0.01)us-gaap_EarningsPerShareBasic

^[3]

$ 0.20us-gaap_EarningsPerShareBasic

$ 0.06us-gaap_EarningsPerShareBasic

$ 0.37us-gaap_EarningsPerShareBasic

$ 0.73us-gaap_EarningsPerShareBasic

$ 0.09us-gaap_EarningsPerShareBasic

Diluted earnings per share

$ 0.23us-gaap_EarningsPerShareDiluted

^[1]

$ 0.23us-gaap_EarningsPerShareDiluted

$ 0.17us-gaap_EarningsPerShareDiluted

$ 0.11us-gaap_EarningsPerShareDiluted

$ 0.12us-gaap_EarningsPerShareDiluted

^[2]

$ (0.01)us-gaap_EarningsPerShareDiluted

^[3]

$ 0.20us-gaap_EarningsPerShareDiluted

$ 0.06us-gaap_EarningsPerShareDiluted

$ 0.37us-gaap_EarningsPerShareDiluted

$ 0.73us-gaap_EarningsPerShareDiluted

$ 0.09us-gaap_EarningsPerShareDiluted

Continuing Operations [Member]

Basic earnings per share

Distributed earnings, basic

$ 0.14us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.11us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.09us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

Undistributed earnings, basic

$ 0.23us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.62us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.26us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

Diluted earnings per share

Distributed earnings, diluted

$ 0.14us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.11us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.09us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

Undistributed earnings, diluted

$ 0.23us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.62us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

$ 0.26us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember

Discontinued Operations [Member]

Basic earnings per share

Distributed earnings, basic

$ 0.00us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareBasicDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

Undistributed earnings, basic

$ 0.00us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ (0.26)us-gaap_EarningsPerShareBasicUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

Diluted earnings per share

Distributed earnings, diluted

$ 0.00us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareDilutedDistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

Undistributed earnings, diluted

$ 0.00us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ 0.00us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

$ (0.26)us-gaap_EarningsPerShareDilutedUndistributed
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember

[1]	The fourth quarter of 2013 includes a gain of $7.0 million related to final settlement of the Company's fire insurance claim in Australia. The fourth quarter of 2013 also includes $1.7 million of expenses related to debt retirement.
[2]	Results for the fourth quarter of 2014 include debt retirement expenses of $12.0 million.
[3]	Results for the third quarter of 2014 include restructuring and asset impairment charges of $12.4 million.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The earnings attributable to each security on the basis that all of the earnings for the period had been distributed (to the extent that each security may share in earnings). This is the earnings amount which reflects the participation rights in undistributed earnings of each security.

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