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Note 9 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Thousands |  |  |  | 2 Months Ended | 12 Months Ended |  |
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Dec. 01, 2025 shares | Nov. 20, 2025 shares | Feb. 12, 2024 shares | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2026 USD ($) | Nov. 09, 2026 USD ($) | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 shares | Dec. 31, 2019 | Dec. 31, 2017 | Nov. 09, 2025 | Jul. 31, 2002 shares
Common Stock, Number of Votes Per Share |  |  |  |  |  |  | 1 |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 450,000 | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds From Issuance of Common Stock, Net | $ |  |  |  |  |  |  | $ 63,261 | $ 0 | $ 0 |  |  |  |  |
Payments of Stock Issuance Costs | $ |  |  |  |  |  |  | $ 650 |  |  |  |  |  |  |
Preferred Stock, Shares Authorized (in shares) |  |  |  | 5,000,000 |  |  | 5,000,000 | 5,000,000 |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  | $ 0.001 |  |  | $ 0.001 | $ 0.001 |  |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares) |  |  |  | 1,000,000 |  |  | 1,000,000 |  |  |  |  |  |  |
Share Repurchase Program Additional Number of Shares Authorized To Be Repurchased (in shares) |  |  |  | 7,800,000 |  |  | 7,800,000 |  |  |  |  |  |  |
Share Repurchase Program, Remaining Authorized, Number of Shares |  |  |  | 684,486 |  |  | 684,486 |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross |  |  |  |  |  |  | 0 |  |  | 0 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares |  |  |  |  |  |  |  | $ 10.46 | $ 11.3 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options and Stock Appreciation Rights, Exercises in Period, Intrinsic Value | $ |  |  |  |  |  |  | $ 194 | $ 187 | $ 173 |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded |  |  | 7,268 |  |  |  |  |  |  |  |  |  |  |
Chief Operating Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded |  |  | 6,460 |  |  |  |  |  |  |  |  |  |  |
Chief Commercial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded |  |  | 6,460 |  |  |  |  |  |  |  |  |  |  |
Performance Share Units [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Percentage of License Revenue Target, Proportional Percentage to Be Received upon Achievement |  |  |  | 99.00% |  |  | 99.00% |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation, Term Extension (Year) |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |
Share-Based Payment Arrangement, Plan Modification, Incremental Cost | $ |  |  |  | $ 371 |  |  |  |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Plan Modification, Incremental Cost | $ |  |  |  |  | $ 2,356 | $ 2,727 |  |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  |  |  | 25,795 |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded, Percentage |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded |  |  | 51,918 |  |  |  |  |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  |  |  | 5,158 |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | Chief Operating Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  |  |  | 4,585 |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | Chief Commercial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  |  |  | 4,585 |  |  |  |  |  |  |
Short-Term Executive PSUs [Member] | CFO, COO, and CCO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Addtional Shares Issuable, Performance Goals Exceeded, Percentage |  |  | 70.00% |  |  |  |  |  |  |  |  |  |  |
RSUs and PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  |  |  |  |  | 988,322 |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Vesting Date Fair Value (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 26.25 |  |  |  |  |  |  |
Stock Options, Stock Appreciation Rights, Restricted Stock Units, and Performance Share Units [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant |  |  |  | 1,088,491 |  |  | 1,088,491 |  |  |  |  |  |  |
Share-Based Payment Arrangement, Employee [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period |  |  |  |  |  |  |  |  |  |  | 3 years | 1 year |  |
Share-Based Payment Arrangement, Tranche One [Member] | Share-Based Payment Arrangement, Nonemployee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |
Vesting on February 16, 2025 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 33.40% |  |  |  |  |  |  |  |  |  |  |
Vesting on February 16, 2025 [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  | 33.40% |  |  |  |  |  |  |
Vesting on February 16, 2026 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 33.30% |  |  |  |  |  |  |  |  |  |  |
Vesting on February 16, 2026 [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  | 33.30% |  |  |  |  |  |  |
Vesting on February 16, 2027 [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 33.30% |  |  |  |  |  |  |  |  |  |  |
Vesting on February 16, 2027 [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  | 33.30% |  |  |  |  |  |  |
Goals One [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Short-Term Executive PSUs [Member] | Full Vesting Based on The Achievement of 2022 License Target [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return In Excess of 100 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Short-Term Executive PSUs [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Short-Term Executive PSUs [Member] | Chief Executive Officer [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Maximum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Achievement In Excess of 90 Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 110.00% |  |  |  |  |  |  |  |  |  |  |
Goals One [Member] | Minimum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Achievement In Excess of 90 Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 91.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return In Excess of 100 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Short-Term Executive PSUs [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Short-Term Executive PSUs [Member] | Chief Executive Officer [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Maximum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return In Excess of 100 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 110.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Maximum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Minimum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return In Excess of 100 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Goals Two [Member] | Minimum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of S&P500 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 91.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Short-Term Executive PSUs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Short-Term Executive PSUs [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Short-Term Executive PSUs [Member] | Full Vesting Based on The Achievement of Positive Shareholder Return [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of Russel 2000 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Short-Term Executive PSUs [Member] | Chief Executive Officer [Member] | Increase in Eligible PSUs, Percent [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Conditional Increase in Shares, Percentage |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Maximum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of Russel 2000 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 99.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 110.00% |  |  |  |  |  |  |  |  |  |  |
Goals Three [Member] | Minimum [Member] | Short-Term Executive PSUs [Member] | Vesting Based on Actual Return Being at Least 90 Percent of Russel 2000 Index [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 91.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Threshold, Percentage |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Actual Performance Results, in Excess of Performance Threshold, Percentage |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 34,612 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 15,575 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Chief Operating Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 13,844 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Chief Commercial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 13,844 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Performance Share Units [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 51,918 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Performance Share Units [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 10,383 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Performance Share Units [Member] | Chief Operating Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 9,229 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Performance Share Units [Member] | Chief Commercial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  |  | 9,229 |  |  |  |  |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period |  |  |  |  |  |  | 4 years |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Share-Based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period |  |  |  |  |  |  | 36 months |  |  |  |  |  |  |
The2011 Stock Incentive Plan [Member] | Vesting After the First Anniversary Grant Date [Member] | Share-Based Payment Arrangement, Nonemployee [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
The 2002 Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant |  |  |  | 553,333 |  |  | 553,333 |  |  |  |  |  |  | 3,950,000
Period Employees Eligible To Participate in Employee Stock Purchase Plan (Month) |  |  |  |  |  |  | 5 months |  |  |  |  |  |  |
Minimum Working Hours for Eligibility of Employee Stock Purchase Plan |  |  |  |  |  |  | 20 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) |  |  |  |  |  |  | 154,600 | 147,367 | 133,938 |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares |  |  |  | $ 19.09 |  |  | $ 19.09 | $ 19.56 | $ 25.33 |  |  |  |  |
Proceeds from Stock Plans | $ |  |  |  |  |  |  | $ 2,952 | $ 2,883 | $ 3,393 |  |  |  |  |
The 2002 Employee Stock Purchase Plan [Member] | Commencement of Offer Period [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Price, Percentage Fair Value Market Value |  |  |  | 85.00% |  |  | 85.00% |  |  |  |  |  |  |
The 2002 Employee Stock Purchase Plan [Member] | Last Day of Purchase Period [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Vesting Price, Percentage Fair Value Market Value |  |  |  | 85.00% |  |  | 85.00% |  |  |  |  |  |  |

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