Note 12 - Stock-based Compensation (Details) - RSU Transactions - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Sep. 27, 2015	Mar. 29, 2015
Note 12 - Stock-based Compensation (Details) - RSU Transactions [Line Items]
Unvested at March 29, 2015		1,072,925
Unvested at March 29, 2015 (in Dollars per share)		$ 10.26
Unvested at March 29, 2015	1 year 98 days	1 year 6 months
Unvested at March 29, 2015 (in Dollars)		$ 11,051
Unvested at September 27, 2015	891,820
Unvested at September 27, 2015 (in Dollars per share)	$ 10.32
Unvested at September 27, 2015	1 year 98 days	1 year 6 months
Unvested at September 27, 2015 (in Dollars)	$ 5,413
Granted	230,595
Granted (in Dollars per share)	$ 9.93
Issued and released	(352,009)
Issued and released (in Dollars per share)	$ 9.84
Cancelled	(59,691)
Cancelled (in Dollars per share)	$ 10.63
Vested and expected to vest, September 27, 2015	739,170
Vested and expected to vest, September 27, 2015	1 year 65 days
Vested and expected to vest, September 27, 2015 (in Dollars)	$ 4,487

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest share-based compensation awards (other than options) outstanding.

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The number of exercisable share-based compensation awards other than options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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Weighted average remaining contractual term for fully vested and expected to vest share-based compensation awards (other than options) outstanding.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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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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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).

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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).

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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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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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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

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