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Employee Benefit Plans and Stock-based Compensation (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |
Weighted-average grant date fair value of stock options granted (in dollars per share) | $ 1.79 | $ 2.65 | $ 3.11 |
Weighted average assumptions [Abstract] |  |  |  |
Expected term | 4 years | 4 years | 4 years |
Volatility (in hundredths) | 72.87% | 69.84% | 69.00% |
Expected dividend (in hundredths) | 0.00% | 0.00% | 0.00% |
Risk-free interest rate (in hundredths) | 0.57% | 1.00% | 2.04% |
Retirement Savings Plan [Abstract] |  |  |  |
Period after which all full time employees are eligible to participate in the savings plan | 90 days |  |  |
Maximum percentage of employer matching contribution if employees contribute at least 6% of base pay (in hundredths) | 4.00% |  |  |
Minimum percentage of employee contribution to get 4% of employer's contribution (in hundredths) | 6.00% |  |  |
Contributions to the retirement savings plans | $ 900,000 | $ 610,000 | $ 485,000 |
Common stock [Abstract] |  |  |  |
Common stock reserved for future issuance | 3,178,646 |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Options outstanding, shares (in shares) | 2,727,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 3.28 |  |  |
Weighted-average Remaining Contractual Life | 6 years 8 months 15 days |  |  |
Options Vested and Excisable Shares (in shares) | 1,595,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 2.88 |  |  |
Stock-based compensation in the form of employee stock options and restricted stock [Abstract] |  |  |  |
Total stock-based compensation | 1,215,000 | 896,000 | 655,000 |
Tax effect on stock-based compensation | 0 | 0 | 0 |
Net effect on net income | 1,215,000 | 896,000 | 655,000 |
Shares used in computing basic net income per share (in shares) | 32,144,000 | 31,872,000 | 31,008,000 |
Shares used in computing diluted net income per share (in shares) | 32,865,000 | 33,061,000 | 32,512,000 |
Effect on basic net income per share (in dollars per share) | $ (0.04) | $ (0.03) | $ (0.02) |
Effect on diluted net income per share (in dollars per share) | $ (0.04) | $ (0.03) | $ (0.02) |
$1.18 - $1.38 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 1.18 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 1.38 |  |  |
Options outstanding, shares (in shares) | 403,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 1.31 |  |  |
Weighted-average Remaining Contractual Life | 1 year 5 months 26 days |  |  |
Options Vested and Excisable Shares (in shares) | 403,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 1.31 |  |  |
$1.40 - $1.40 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 1.40 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 1.40 |  |  |
Options outstanding, shares (in shares) | 1,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 1.4 |  |  |
Weighted-average Remaining Contractual Life | 2 years 2 months 12 days |  |  |
Options Vested and Excisable Shares (in shares) | 1,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 1.4 |  |  |
$1.59 - $1.59 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 1.59 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 1.59 |  |  |
Options outstanding, shares (in shares) | 328,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 1.59 |  |  |
Weighted-average Remaining Contractual Life | 6 years 3 months 14 days |  |  |
Options Vested and Excisable Shares (in shares) | 294,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 1.59 |  |  |
$1.88 - $1.91 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 1.88 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 1.91 |  |  |
Options outstanding, shares (in shares) | 8,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 1.9 |  |  |
Weighted-average Remaining Contractual Life | 1 year 8 months 26 days |  |  |
Options Vested and Excisable Shares (in shares) | 8,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 1.9 |  |  |
$2.04 - $2.04 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 2.04 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 2.04 |  |  |
Options outstanding, shares (in shares) | 442,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 2.04 |  |  |
Weighted-average Remaining Contractual Life | 6 years 9 months 25 days |  |  |
Options Vested and Excisable Shares (in shares) | 343,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 2.04 |  |  |
$2.91 - $2.91 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 2.91 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 2.91 |  |  |
Options outstanding, shares (in shares) | 488,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 2.91 |  |  |
Weighted-average Remaining Contractual Life | 9 years 10 months 5 days |  |  |
Options Vested and Excisable Shares (in shares) | 0 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 0 |  |  |
$3.11 - $4.09 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 3.11 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 4.09 |  |  |
Options outstanding, shares (in shares) | 91,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 3.37 |  |  |
Weighted-average Remaining Contractual Life | 3 years 5 months 22 days |  |  |
Options Vested and Excisable Shares (in shares) | 67,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 3.17 |  |  |
$4.79 - $4.79 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 4.79 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 4.79 |  |  |
Options outstanding, shares (in shares) | 366,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 4.79 |  |  |
Weighted-average Remaining Contractual Life | 8 years 9 months 25 days |  |  |
Options Vested and Excisable Shares (in shares) | 107,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 4.79 |  |  |
$4.81 - $5.61 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 4.81 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 5.61 |  |  |
Options outstanding, shares (in shares) | 145,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 5.26 |  |  |
Weighted-average Remaining Contractual Life | 6 years 10 months 5 days |  |  |
Options Vested and Excisable Shares (in shares) | 65,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 4.84 |  |  |
$5.83 - $7.82 [Member] |  |  |  |
Exercise price ranges of options outstanding and exercisable [Abstract] |  |  |  |
Range of exercise price, minimum (in dollars per share) | $ 5.83 |  |  |
Range of exercise price, maximum (in dollars per share) | $ 7.82 |  |  |
Options outstanding, shares (in shares) | 455,000 |  |  |
Weighted-average Exercise Price (in dollars per share) | $ 6 |  |  |
Weighted-average Remaining Contractual Life | 7 years 1 month 27 days |  |  |
Options Vested and Excisable Shares (in shares) | 307,000 |  |  |
Option Vested and Exercisable, Weighted-Average Exercise Price (in dollars per share) | $ 6.01 |  |  |
Cost of revenue [Member] |  |  |  |
Stock-based compensation in the form of employee stock options and restricted stock [Abstract] |  |  |  |
Total stock-based compensation | 78,000 | 84,000 | 36,000 |
Selling, general and administrative [Member] |  |  |  |
Stock-based compensation in the form of employee stock options and restricted stock [Abstract] |  |  |  |
Total stock-based compensation | 1,000,000 | 766,000 | 562,000 |
Research and development [Member] |  |  |  |
Stock-based compensation in the form of employee stock options and restricted stock [Abstract] |  |  |  |
Total stock-based compensation | 137,000 | 46,000 | 57,000 |
Stock Options [Member] |  |  |  |
Common stock [Abstract] |  |  |  |
Common stock reserved for future issuance | 2,726,695 |  |  |
Restricted Stock [Member] |  |  |  |
Common stock [Abstract] |  |  |  |
Common stock reserved for future issuance | 238,723 |  |  |
1997 Stock Option Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares authorized for issuance (in shares) | 5,423,583 |  |  |
Terms of award | P10Y |  |  |
Number of shares available for grant (in shares) | 1,928,994 |  |  |
1997 Stock Option Plan [Member] | Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period, minimum | 4 years |  |  |
Award vesting rights | Options granted under the 1997 Plan generally vest 25% at the end of one year and 2.1% each month thereafter, with full vesting after four years. |  |  |
1997 Stock Option Plan [Member] | Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period if vesting is based on a performance measure | 5 years |  |  |
2007 Equity Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares authorized for issuance (in shares) | 1,300,000 |  |  |
Terms of award | P10Y |  |  |
Number of shares available for grant (in shares) | 213,000 |  |  |
Common stock [Abstract] |  |  |  |
Common stock reserved for future issuance | 213,228 |  |  |
2007 Equity Incentive Plan [Member] | Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period, minimum | 3 years |  |  |
Award vesting rights | Stock options or stock appreciation rights generally shall not be fully vested over a period of less than three years from the date of grant |  |  |
Number of options outstanding [Roll Forward] |  |  |  |
Options outstanding, beginning of period (in shares) | 2,380,000 | 2,280,000 | 2,880,000 |
Granted (in shares) | 592,000 | 367,000 | 399,000 |
Exercised (in shares) | (136,000) | (251,000) | (876,000) |
Canceled (in shares) | (109,000) | (16,000) | (123,000) |
Options outstanding, end of period (in shares) | 2,727,000 | 2,380,000 | 2,280,000 | 2,880,000
Options vested and expected to vest as of December 31, 2012 (in shares) | 2,717,000 |  |  |
Options exercisable as of December 31, 2012 (in shares) | 1,595,000 |  |  |
Weighted average exercise price [Roll Forward] |  |  |  |
Options outstanding, beginning of period (in dollars per share) | $ 3.25 | $ 3.10 | $ 2.46 |
Granted (in dollars per share) | $ 3.32 | $ 4.79 | $ 5.93 |
Exercised (in dollars per share) | $ 2.17 | $ 2.54 | $ 1.71 |
Canceled and expired (in dollars per share) | $ 4.25 | $ 27.98 | $ 7.26 |
Options outstanding, end of period (in dollars per share) | $ 3.28 | $ 3.25 | $ 3.10 | $ 2.46
Options vested and expected to vest as of December 31, 2011 (in dollars per share) | $ 3.28 |  |  |
Options exercisable as of December 31, 2011 (in dollars per share) | $ 2.88 |  |  |
Weighted average Remaining Contractual Life [Abstract] |  |  |  |
Options outstanding, beginning of period | 6 years 8 months 15 days | 6 years 3 months | 6 years 4 months 24 days | 5 years 8 months 12 days
Options outstanding, end of period | 6 years 8 months 15 days | 6 years 3 months | 6 years 4 months 24 days | 5 years 8 months 12 days
Options vested and expected to vest, end of period | 6 years 8 months 12 days |  |  |
Option exercisable, end of period | 5 years 1 month 27 days |  |  |
Aggregate Intrinsic Value [Abstract] |  |  |  |
Options outstanding, beginning of period | 3,456,000 | 17,030,000 | 3,850,000 |
Options outstanding, end of period | 1,353,000 | 3,456,000 | 17,030,000 | 3,850,000
Options vested and expected to vest, aggregate intrinsic value | 1,352,000 |  |  |
Options exercisable, end of period | 1,235,000 |  |  |
Intrinsic value of options exercised | 392,000 | 1,600,000 | 4,300,000 |
Compensation costs related to unvested stock options not yet recognized | 2,200,000 |  |  |
Value of estimated forfeitures | 20,000 |  |  |
Weighted-average period of amortization | 2 years 7 months 6 days |  |  |
2007 Equity Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period, minimum | 3 years |  |  |
Vesting period if vesting is based on a performance measure | 12 months |  |  |
Award vesting rights | Restricted stock, restricted stock units, and performance awards generally shall not vest faster than over a three-year period (or a twelve-month period if vesting is based on a performance measure) |  |  |
Shares [Roll Forward] |  |  |  |
Non-vested, beginning of period (in shares) | 223,127 | 218,405 | 170,660 |
Granted (in shares) | 113,768 | 97,986 | 121,237 |
Vested (in shares) | (98,172) | (93,264) | (69,092) |
Forfeited (in shares) |  |  | (4,400) |
Non-vested, end of period (in shares) | 238,723 | 223,127 | 218,405 |
Weighted Average Grant Date Fair Value [Roll Forward] |  |  |  |
Non-vested, beginning of period (in dollars per share) | $ 4.47 | $ 3.30 | $ 1.21 |
Granted (in dollars per share) | $ 3.18 | $ 5.21 | $ 5.29 |
Vested (in dollars per share) | $ 3.42 | $ 2.51 | $ 1.48 |
Forfeited (in dollars per share) |  |  | $ 5.83 |
Non-vested, end of period (in dollars per share) | $ 4.27 | $ 4.47 | $ 3.30 |
Total fair value of restricted stock awards vested | 336,000 | 234,000 | 102,000 |
Unrecognized compensation expense related to restricted stock awards | $ 867,000 |  |  |
Weighted average remaining contractual terms | 2 years 8 months 12 days |  |  |

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- Definition 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. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(e) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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. + 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)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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. + 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)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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. + 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)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested 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)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(d) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition 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. + 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)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(d) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(d) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock 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)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(f) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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