The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

No definition available.

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The lowest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

+ References

No definition available.

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- Definition

The percentage increase or decrease in number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding, including vested options.

+ References

No definition available.

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ 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 (i)

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- Definition

The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

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-Subparagraph (a)

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-Glossary Financing Activities

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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.

+ References

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- Definition

The discount rate from market value on offering date that participants pay for shares.

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-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Paragraph 2

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- Definition

The discount rate from market value on purchase date that participants pay for shares.

+ References

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- Definition

The total fair value of equity-based awards 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.

+ References

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

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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-Subparagraph c(2)

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

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).

+ References

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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)(iii)

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-Paragraph A240

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ 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 (d)(2)

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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

-Publisher FASB

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-Subparagraph (c)(1)(i)-(ii)

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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-Name Regulation S-X (SX)

-Number 210

-Section 04

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Note 16 - Stock-Based Compensation (Detail) (USD $)	12 Months Ended									1 Months Ended				12 Months Ended				1 Months Ended		1 Months Ended	12 Months Ended	81 Months Ended		1 Months Ended	36 Months Ended	1 Months Ended
Note 16 - Stock-Based Compensation (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Purchase Plan 1999 [Member]	Dec. 31, 2011 Purchase Plan 1999 [Member]	Dec. 31, 2010 Purchase Plan 1999 [Member]	Oct. 31, 1999 Purchase Plan 1999 [Member]	Nov. 01, 2009 Purchase Plan 2009 [Member]	Dec. 31, 1997 Stock Plan 1997 [Member]	Jan. 31, 2001 Stock Incentive Plan 1999 [Member] Maximum [Member] Annual Increase [Member]	Jan. 31, 2001 Stock Incentive Plan 1999 [Member] Annual Increase [Member]	Dec. 31, 2012 Stock Incentive Plan 1999 [Member]	Dec. 31, 1999 Stock Incentive Plan 1999 [Member]	Dec. 31, 2012 Share Option Plan 2005 [Member]	Dec. 31, 2011 Share Option Plan 2005 [Member]	May 30, 2009 Share Option Plan 2005 [Member]	Mar. 02, 2006 Share Option Plan 2005 [Member]	May 30, 2009 Share Incentive Plan 2005 [Member]	Mar. 02, 2006 Share Incentive Plan 2005 [Member]	Jun. 30, 2008 Purchase Plan 1999 [Member]	Dec. 31, 2009 Purchase Plan 1999 [Member]	May 31, 2008 Purchase Plan 1999 [Member]	Aug. 31, 2000 Purchase Plan 1999 [Member]	Jun. 22, 2012 Purchase Plan 2009 [Member]	Dec. 31, 2012 Purchase Plan 2009 [Member]	Jun. 22, 2012 Share Option Plan 2005 [Member]	Jun. 22, 2012 Share Incentive Plan 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized								25,000,000	185,000,000				150,000,000			175,000,000	100,000,000	125,000,000	75,000,000				50,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized										75,000,000										20,000,000		40,000,000		15,000,000		50,000,000	62,500,000
Share-Based Compensation Arrangement By Share-Based Payment Award Minimum Employee Subscription Rate							1.00%
Share-Based Compensation Arrangement By Share-Based Payment Award Employee Subscription Rate Maximum							10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date				90.00%
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date				90.00%
Stock Issued During Period, Shares, Employee Stock Purchase Plans																					10,685,400				18,334,050
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingPeriodIncreaseDecreasePercentage											4.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number												114,895,200		146,426,250
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number												114,895,200		107,332,200
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period														4 years				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value (in Dollars)			$ 45,000											$ 74,000	$ 545,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)	3,514,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value (in Dollars)	1,474,000	1,637,000	1,688,000
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options (in Dollars)	$ 612,000	$ 994,000	$ 533,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 0.0438	$ 0.0705	$ 0.0551	$ 0.0140	$ 0.0192	$ 0.0232