Allocated share-based compensation expense (credit).

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Common stock issued pursuant to options exercised.

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Number of senior vice president and chief financial officer.

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Number of vice presidents.

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- Definition

Percentage of time based vesting for options, vesting ratably monthly, starting on first anniversary of grant date.

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Reversal of share based compensation expense.

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Share based compensation arrangement by share based payment award options and restricted stock units outstanding number.

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Share based compensation arrangement by share based payment award vesting commencement date.

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Share based compensation arrangement by share based payment award vesting date.

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Share-based compensation net impact on earning per share basic.

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Share-based compensation net impact on earning per share diluted.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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- Definition

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

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Date the equity-based award expires, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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

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

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- Definition

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

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- Definition

Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Awards and Per Share Information - Additional Information (Detail)				3 Months Ended
	Mar. 27, 2017 SeniorVicePresidentChiefFinancialOfficer $ / shares shares	Mar. 13, 2017 shares	Feb. 06, 2017 $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($) $ / shares shares	Apr. 18, 2016 VicePresident $ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense related to stock options \| $				$ 379,000		$ 834,000
Net impact of share based compensation expense to earnings per basic share \| $ / shares				$ 0.01		$ 0.01
Net impact of share based compensation expense to earnings per diluted share \| $ / shares				$ 0.01		$ 0.01
Total unrecognized compensation cost \| $					$ 5,300,000
Unrecognized share based compensation cost to be recognized over weighted-average period					2 years 4 months 24 days
Reversal of share based compensation expense \| $				$ 428,000
Number of newly hired vice presidents \| VicePresident							1
Number of senior vice president and chief financial officer \| SeniorVicePresidentChiefFinancialOfficer	1
Outstanding stock options, restricted stock units and warrants excluded from diluted loss per share				22,927,127		15,227,739
Stock Options \| Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted			611,000
Awards valued per share \| $ / shares			$ 1.55
Options expiration period			10 years
Stock Options \| Existing Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted			586,000
Stock Options \| Existing Employees \| Vest on First Anniversary of Award Date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage			50.00%
Stock Options \| Existing Employees \| Vest on Second Anniversary of Award Date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage			50.00%
Stock Options \| New Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award, Vesting Commencement Date			Mar. 06, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Monthly Ratable Award Vesting Period			36 months
Options vesting description				For the 25,000 options awarded to new employees, 25% vest on February 6, 2018 and the remainder vest ratably over the 36-month period, commencing on March 6, 2018.
Stock Options \| New Employees \| Vest on February 6, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted			25,000
Share Based Compensation Arrangement By Share Based Payment Award, Vesting Commencement Date			Feb. 06, 2018
Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage			25.00%
Stock Options \| Vice Presidents
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted		400,000
Awards valued per share \| $ / shares							$ 1.17
Options expiration period		10 years
Share Based Compensation Arrangement By Share Based Payment Award, Vesting Commencement Date		Mar. 13, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Monthly Ratable Award Vesting Period		36 months
Percentage of time based vesting for options							75.00%
Stock Options \| Vice Presidents \| Awards Vesting on March 13, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage		25.00%
Non Qualified Stock Options \| Senior Vice President and Chief Financial Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted	600,000
Awards valued per share \| $ / shares	$ 1.28
Options expiration period	10 years
Share Based Compensation Arrangement By Share Based Payment Award, Vesting Commencement Date	Mar. 27, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Monthly Ratable Award Vesting Period	36 months
Percentage of time based vesting for options	75.00%
Non Qualified Stock Options \| Senior Vice President and Chief Financial Officer \| Awards Vesting on March 27, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage	25.00%
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards valued per share \| $ / shares			$ 1.55
Granted			80,000	1,080,000
Vest in period				94,761
Restricted Stock Units (RSUs) \| Vest on March 14, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			Mar. 14, 2017
Vest in period			30,000
Restricted Stock Units (RSUs) \| Vest on September 14, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			Sep. 14, 2017
Vest in period			20,000
Restricted Stock Units (RSUs) \| Vest on May 10, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			May 10, 2018
Vest in period			30,000
Restricted Stock Units (RSUs) \| President And Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards valued per share \| $ / shares			$ 1.55
Options vesting description			(i) one-quarter of the RSUs vest on February 6, 2019, (ii) one-eighth of the RSUs vest on February 6, 2020, (iii) one-eighth of the RSUs vest on February 6, 2021, and (iv) one-half of the RSUs vest upon the achievement of specific interim and annual Company performance criteria
Granted			1,000,000
Restricted Stock Units (RSUs) \| President And Chief Executive Officer \| Vest on February 6, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			Feb. 06, 2019
Restricted Stock Units (RSUs) \| President And Chief Executive Officer \| Vest on February 6, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			Feb. 06, 2020
Restricted Stock Units (RSUs) \| President And Chief Executive Officer \| Vest on February 6, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date			Feb. 06, 2021
2002 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan expiration date				May 05, 2019
Common stock authorized for issuance under the 2002 Plan				15,550,000
Common stock issued pursuant to options exercised				3,651,829
Options and restricted stock units outstanding				8,420,559
Options available for future grants				3,477,612