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STOCK-BASED COMPENSATION - 2012 Plan and ESPP (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($) item shares
2012 Equity Incentive Plan |
Stock-based compensation |
Shares remaining available for issuance | 4,851,655
ESPP |
Stock-based compensation |
Purchase price as a percentage of fair market value of stock | 85.00%
Total duration of consecutive and overlapping offering periods | 24 months
Number of offering periods | item | 4
Duration of purchase period | 6 months
Maximum contributions as a percentage of employee's eligible compensation | 15.00%
Maximum number of shares an employee may purchase during any purchase period | 2,500
Maximum value of shares an employee may purchase in a calendar year | $ | $ 25,000
Shares remaining available for issuance | 181,699

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- Definition Maximum amount the employee may contribute of employee's eligible compensation. + References No definition available. + Details
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- Definition Represents the number of purchase periods having duration of six months each. + References No definition available. + Details
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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The highest quantity of shares an employee can purchase under the plan per period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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