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The number of restricted stock units that have been modified into performance-based restricted stock units.

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Represents the percentage of awards settled during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Represents number of shares for every award issued, for awards other than a stock option and stock appreciation right.

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Represents number of installments in which share-based compensation awards vest.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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Number of options outstanding, including both vested and non-vested options.

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Price of a single share of a number of saleable stocks of a company.

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Percentage of vesting of share-based compensation awards.

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Purchase price of common stock expressed as a percentage of its fair value.

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Note 12 - Stock-based Compensation (Details)	1 Months Ended						3 Months Ended			5 Months Ended	6 Months Ended		12 Months Ended
Note 12 - Stock-based Compensation (Details)	Oct. 31, 2014 shares	Jan. 31, 2014 shares	Dec. 31, 2013 shares	Oct. 31, 2013 shares	Mar. 31, 2012 shares	Jan. 31, 2012 shares	Sep. 27, 2015 USD ($) $ / shares shares	Jun. 28, 2015 USD ($)	Sep. 28, 2014 USD ($)	Dec. 31, 2014 shares	Sep. 27, 2015 USD ($) $ / shares shares	Sep. 28, 2014 USD ($)	Mar. 29, 2015 USD ($) $ / shares	Sep. 18, 2014 shares	Jun. 30, 2014 shares	Mar. 30, 2014 shares
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares)							7,772,082				7,772,082					7,609,622
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)							4,500,000				4,500,000
Share Price (in Dollars per share) \| $ / shares							$ 6.07				$ 6.07		$ 10.30
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)											885,500
Allocated Share-based Compensation Expense \| $							$ 1,452,000		$ 3,600,000		$ 3,389,000	$ 6,727,000
Chief Executive Officer [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Number of RSUs Modified Into PRSUs (in Shares)	50,000
Employee Stock Participation Plan [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent											95.00%
2006 Plan and Sipex 2006 Plan [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares)															6,555,492
2006 Plan [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)															669,008
2014 Plan [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)														5,170,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Per Award (in Shares)											2
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)							4,100,000				4,100,000
2015 Incentive Program [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense \| $													$ 2,000,000
Percentage of Awards Settled with Cash								20.00%
Fair Value Change [Member] \| 2015 Incentive Program [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense \| $								$ 50,000
Employee Stock Option [Member] \| Chief Executive Officer [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)		140,000				480,000
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments						4
Allocated Share-based Compensation Expense \| $							$ 58,000		75,000		$ 117,000	187,000
Performance-Based RSUs [Member] \| Chief Executive Officer [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments					3
Allocated Share-based Compensation Expense \| $							64,000		100,000		128,000	900,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)					300,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					3 years
Performance-Based RSUs [Member] \| Former iML Employees [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments										3
Allocated Share-based Compensation Expense \| $							47,000		0		$ 86,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)										88,448
Restricted Stock Units (RSUs) [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)											230,595
Restricted Stock Units (RSUs) [Member] \| Chief Executive Officer [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments			2
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)			100,000
Restricted Stock Units (RSUs) [Member] \| Former Cadeka Employees [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense \| $							200,000		600,000		$ 200,000	1,000,000
October 2013 PRSUs [Member] \| Certain Executives [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense \| $							39,000		$ 100,000		78,000	$ 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)				70,000
October 2013 PRSUs [Member] \| Share-based Compensation Award, Tranche One [Member] \| Certain Executives [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments				3
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				50.00%
October 2013 PRSUs [Member] \| Share-based Compensation Award, Tranche Two [Member] \| Certain Executives [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting, Number of Installments				3
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				50.00%
Modified PRSUs [Member] \| Chief Executive Officer [Member]
Note 12 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense \| $							$ 47,000				$ 94,000		$ 10,000