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Stock Compensation (Tables) | 12 Months Ended
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Dec. 31, 2016
Stock Compensation [Abstract] |
Schedule Of Shares Available For Grant |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Authorized |  | Available for Grant
﻿Plan |  | Shares |  | 2016 |  | 2015
﻿1996 Discounted Employee Stock Purchase Plan, as amended |  | 1,900,000 |  | 469,000 |  | 560,000
﻿2009 Employee Stock Incentive Plan |  | 7,100,000 |  | 2,194,000 |  | 3,361,000
﻿Total |  | 9,000,000 |  | 2,663,000 |  | 3,921,000
﻿
Schedule Of Stock Grant Activity For RSAs |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted
﻿ |  |  |  | Average
﻿ |  |  |  | Grant Date
﻿RSAs |  | Shares |  | Fair Value
﻿Unvested at December 31, 2013 |  | 622,000 |  | $ | 5.62
﻿Granted |  | 232,000 |  |  | 9.97
﻿Vested |  | (324,000) |  |  | 5.55
﻿Forfeited |  | (35,000) |  |  | 7.22
﻿Unvested at December 31, 2014 |  | 495,000 |  |  | 7.65
﻿Granted |  | 207,000 |  |  | 10.33
﻿Vested |  | (278,000) |  |  | 8.10
﻿Forfeited |  | (110,000) |  |  | 8.49
﻿Unvested at December 31, 2015 |  | 314,000 |  |  | 9.31
﻿Granted |  | 216,000 |  |  | 10.84
﻿Vested |  | (138,000) |  |  | 7.92
﻿Forfeited |  | -- |  |  | --
﻿Unvested at December 31, 2016 |  | 392,000 |  |  | 10.64
﻿
Schedule Of Stock Grant Activity For PSAs |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted
﻿ |  |  |  | Average
﻿ |  |  |  | Grant Date
﻿PSAs |  | Shares |  | Fair Value
﻿Unvested at December 31, 2013 |  | -- |  | $ | --
﻿Granted |  | 250,000 |  |  | 10.18
﻿Vested |  | -- |  |  | --
﻿Forfeited |  | -- |  |  | --
﻿Unvested at December 31, 2014 |  | 250,000 |  |  | 10.18
﻿Granted |  | -- |  |  | --
﻿Vested |  | -- |  |  | --
﻿Forfeited |  | -- |  |  | --
﻿Unvested at December 31, 2015 |  | 250,000 |  |  | 10.18
﻿Granted |  | -- |  |  | --
﻿Vested |  | -- |  |  | --
﻿Forfeited |  | -- |  |  | --
﻿Unvested at December 31, 2016 |  | 250,000 |  |  | 10.18
﻿
Schedule Of Stock Grant Activity For RSUs |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Weighted |  |  |
﻿ |  |  |  | Average |  |  |
﻿ |  |  |  | Remaining |  | Aggregate
﻿ |  |  |  | Contractual |  | Intrinsic
﻿RSUs |  | Shares |  | Term in years |  | Value
﻿Outstanding at December 31, 2013 |  | 129,000 |  |  | 1.56 |  | $ | 1,425,000
﻿Granted |  | 5,000 |  |  |  |  |  |
﻿Vested |  | (52,000) |  |  |  |  |  |
﻿Forfeited |  | (21,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2014 |  | 61,000 |  |  | 1.21 |  |  | 687,000
﻿Granted |  | 88,000 |  |  |  |  |  |
﻿Vested |  | (36,000) |  |  |  |  |  |
﻿Forfeited |  | (10,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2015 |  | 103,000 |  |  | 1.17 |  |  | 1,110,000
﻿Granted |  | 146,000 |  |  |  |  |  |
﻿Vested |  | (44,000) |  |  |  |  |  |
﻿Forfeited |  | (27,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2016 |  | 178,000 |  |  | 1.24 |  |  | 3,405,000
﻿ |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 164,000 |  |  | 1.23 |  | $ | 3,132,000
﻿
Schedule Of Stock Grant Activity For PSUs |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Weighted |  |  |
﻿ |  |  |  | Average |  |  |
﻿ |  |  |  | Remaining |  | Aggregate
﻿ |  |  |  | Contractual |  | Intrinsic
﻿PSUs |  | Shares |  | Term in years |  | Value
﻿Outstanding at December 31, 2013 |  | 236,000 |  |  | 0.81 |  | $ | 2,612,000
﻿Granted |  | 185,000 |  |  |  |  |  |
﻿Vested |  | (143,000) |  |  |  |  |  |
﻿Forfeited |  | (21,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2014 |  | 257,000 |  |  | 0.73 |  |  | 2,907,000
﻿Granted |  | 125,000 |  |  |  |  |  |
﻿Vested |  | (139,000) |  |  |  |  |  |
﻿Forfeited |  | (108,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2015 |  | 135,000 |  |  | 0.74 |  |  | 1,455,000
﻿Granted |  | 144,000 |  |  |  |  |  |
﻿Vested |  | (83,000) |  |  |  |  |  |
﻿Forfeited |  | (8,000) |  |  |  |  |  |
﻿Outstanding at December 31, 2016 |  | 188,000 |  |  | 0.77 |  |  | 3,603,000
﻿ |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 178,000 |  |  | 0.73 |  | $ | 3,412,000
﻿
Summary Of Stock Option Activity |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | Weighted |  |  |
﻿ |  |  |  |  |  |  | Average |  |  |
﻿ |  |  |  | Weighted |  | Remaining |  | Aggregate
﻿ |  |  |  | Average |  | Contractual |  | Intrinsic
﻿ |  | Shares |  | Exercise Price |  | Term in years |  | Value
﻿Outstanding at December 31, 2013 |  | 1,794,000 |  | $ | 6.57 |  |  | 3.31 |  | $ | 8,274,000
﻿Granted |  | 562,000 |  |  | 10.12 |  |  |  |  |  |
﻿Exercised |  | (297,000) |  |  | 7.26 |  |  |  |  |  |
﻿Forfeited |  | (23,000) |  |  | 7.97 |  |  |  |  |  |
﻿Expired |  | (15,000) |  |  | 7.34 |  |  |  |  |  |
﻿Outstanding at December 31, 2014 |  | 2,021,000 |  |  | 7.43 |  |  | 3.54 |  |  | 8,021,000
﻿Granted |  | 328,000 |  |  | 10.83 |  |  |  |  |  |
﻿Exercised |  | (248,000) |  |  | 7.42 |  |  |  |  |  |
﻿Forfeited |  | (112,000) |  |  | 9.93 |  |  |  |  |  |
﻿Expired |  | (93,000) |  |  | 12.08 |  |  |  |  |  |
﻿Outstanding at December 31, 2015 |  | 1,896,000 |  |  | 7.65 |  |  | 3.31 |  |  | 5,992,000
﻿Granted |  | 387,000 |  |  | 10.34 |  |  |  |  |  |
﻿Exercised |  | (372,000) |  |  | 5.60 |  |  |  |  |  |
﻿Forfeited |  | -- |  |  | -- |  |  |  |  |  |
﻿Expired |  | -- |  |  | -- |  |  |  |  |  |
﻿Outstanding at December 31, 2016 |  | 1,911,000 |  |  | 8.59 |  |  | 3.55 |  |  | 20,179,000
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 1,872,000 |  |  | 8.55 |  |  | 3.51 |  |  | 19,843,000
﻿Exercisable at December 31, 2016 |  | 1,193,000 |  |  | 7.50 |  |  | 2.33 |  |  | 13,904,000
﻿
Summary Of Other Information Concerning Stock Options |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿Weighted-average fair value of options granted | $ | 3.68 |  | $ | 3.82 |  | $ | 4.14
﻿Intrinsic value of options exercised |  | 2,422,000 |  |  | 761,000 |  |  | 918,000
﻿
Schedule Of Weighted-Average Assumptions Used To Determine The Fair Value Of Options |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿ | Stock |  | ESPP |  | Stock |  | ESPP |  | Stock |  | ESPP
﻿ | Options |  | Options |  | Options |  | Options |  | Options |  | Options
﻿Expected life of options | 4.75 Years |  | 0.5 Years |  | 4.5 Years |  | 0.5 Years |  | 4.2 Years |  | 0.5 Years
﻿Expected stock price volatility | 0.40 |  | 0.30 |  | 0.44 |  | 0.32 |  | 0.55 |  | 0.36
﻿Dividend yield | --% |  | --% |  | 1.12% |  | 1.06% |  | 1.16% |  | 1.12%
﻿Risk-free interest rate | 1.20% |  | 0.43% |  | 1.41% |  | 0.12% |  | 1.34% |  | 0.08%
﻿
Summary Of Total Stock Compensation Expenses |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2016 |  | 2015 |  | 2014
﻿RSA, PSA, RSU, and PSU expense | $ | 4,966 |  | $ | 3,955 |  | $ | 2,855
﻿Stock option and ESPP option expense |  | 1,636 |  |  | 1,371 |  |  | 842
﻿Total stock compensation expense | $ | 6,602 |  | $ | 5,326 |  | $ | 3,697
﻿

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