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Stock Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Stock Compensation [Abstract] |
Schedule Of Shares Available For Grant |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Authorized |  | Available for Grant
﻿Plan |  | Shares |  | 2017 |  | 2016
﻿1996 Discounted Employee Stock Purchase Plan, as amended |  | 1,900,000 |  | 377,000 |  | 469,000
﻿2009 Equity and Cash Incentive Plan |  | 7,100,000 |  | 1,422,000 |  | 2,194,000
﻿Total |  | 9,000,000 |  | 1,799,000 |  | 2,663,000
﻿
Schedule Of Stock Grant Activity For RSAs |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted
﻿ |  |  |  | Average
﻿ |  |  |  | Grant Date
﻿RSAs |  | Shares |  | Fair Value
﻿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
﻿Granted |  | 138,000 |  |  | 17.00
﻿Vested |  | (129,000) |  |  | 10.84
﻿Forfeited |  | (18,000) |  |  | 11.78
﻿Unvested at December 31, 2017 |  | 383,000 |  |  | 12.81
﻿
Schedule Of Stock Grant Activity For PSAs |
﻿ |  |  |  |  |
﻿ |  |  |  | Weighted
﻿ |  |  |  | Average
﻿ |  |  |  | Grant Date
﻿PSAs |  | Shares |  | Fair Value
﻿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
﻿Granted |  | -- |  |  | --
﻿Vested |  | (250,000) |  |  | 10.18
﻿Forfeited |  | -- |  |  | --
﻿Unvested at December 31, 2017 |  | - |  |  | --
﻿
Schedule Of Stock Grant Activity For RSUs |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Weighted |  |  |
﻿ |  |  |  | Average |  |  |
﻿ |  |  |  | Remaining |  | Aggregate
﻿ |  |  |  | Contractual |  | Intrinsic
﻿RSUs |  | Shares |  | Term in years |  | Value
﻿Unvested at December 31, 2014 |  | 61,000 |  |  | 1.21 |  | $ | 687,000
﻿Granted |  | 88,000 |  |  |  |  |  |
﻿Vested |  | (36,000) |  |  |  |  |  |
﻿Forfeited |  | (10,000) |  |  |  |  |  |
﻿Unvested at December 31, 2015 |  | 103,000 |  |  | 1.17 |  |  | 1,110,000
﻿Granted |  | 146,000 |  |  |  |  |  |
﻿Vested |  | (44,000) |  |  |  |  |  |
﻿Forfeited |  | (27,000) |  |  |  |  |  |
﻿Unvested at December 31, 2016 |  | 178,000 |  |  | 1.24 |  |  | 3,405,000
﻿Granted |  | 196,000 |  |  |  |  |  |
﻿Vested |  | (64,000) |  |  |  |  |  |
﻿Forfeited |  | (24,000) |  |  |  |  |  |
﻿Unvested at December 31, 2017 |  | 286,000 |  |  | 1.26 |  |  | 5,477,000
﻿ |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 286,000 |  |  | 1.26 |  | $ | 5,477,000
﻿
Schedule Of Stock Grant Activity For PSUs |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Weighted |  |  |
﻿ |  |  |  | Average |  |  |
﻿ |  |  |  | Remaining |  | Aggregate
﻿ |  |  |  | Contractual |  | Intrinsic
﻿PSUs |  | Shares |  | Term in years |  | Value
﻿Unvested at December 31, 2014 |  | 257,000 |  |  | 0.73 |  | $ | 2,907,000
﻿Granted |  | 125,000 |  |  |  |  |  |
﻿Vested |  | (139,000) |  |  |  |  |  |
﻿Forfeited |  | (108,000) |  |  |  |  |  |
﻿Unvested at December 31, 2015 |  | 135,000 |  |  | 0.74 |  |  | 1,455,000
﻿Granted |  | 144,000 |  |  |  |  |  |
﻿Vested |  | (83,000) |  |  |  |  |  |
﻿Forfeited |  | (8,000) |  |  |  |  |  |
﻿Unvested at December 31, 2016 |  | 188,000 |  |  | 0.77 |  |  | 3,603,000
﻿Granted |  | 126,000 |  |  |  |  |  |
﻿Vested |  | (128,000) |  |  |  |  |  |
﻿Forfeited |  | (17,000) |  |  |  |  |  |
﻿Unvested at December 31, 2017 |  | 169,000 |  |  | 0.71 |  |  | 3,236,000
﻿ |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 169,000 |  |  | 0.71 |  | $ | 3,236,000
﻿
Summary Of Stock Option Activity |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  | Weighted |  |  |
﻿ |  |  |  |  |  |  | Average |  |  |
﻿ |  |  |  | Weighted |  | Remaining |  | Aggregate
﻿ |  |  |  | Average |  | Contractual |  | Intrinsic
﻿ |  | Shares |  | Exercise Price |  | Term in years |  | Value
﻿Outstanding at December 31, 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
﻿Granted |  | 260,000 |  |  | 16.30 |  |  |  |  |  |
﻿Exercised |  | (394,000) |  |  | 6.30 |  |  |  |  |  |
﻿Forfeited |  | (31,000) |  |  | 12.47 |  |  |  |  |  |
﻿Expired |  | (5,000) |  |  | 7.01 |  |  |  |  |  |
﻿Outstanding at December 31, 2017 |  | 1,741,000 |  |  | 10.19 |  |  | 3.64 |  |  | 15,598,000
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿Vested and expected to vest |  | 1,741,000 |  | $ | 10.19 |  |  | 3.64 |  | $ | 15,598,000
﻿Exercisable at December 31, 2017 |  | 1,167,000 |  | $ | 8.81 |  |  | 2.76 |  | $ | 12,057,000
﻿
Summary Of Other Information Concerning Stock Options |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2017 |  | 2016 |  | 2015
﻿Weighted-average fair value of options granted | $ | 5.97 |  | $ | 3.68 |  | $ | 3.82
﻿Intrinsic value of options exercised |  | 4,748,000 |  |  | 2,422,000 |  |  | 761,000
﻿
Schedule Of Weighted-Average Assumptions Used To Determine The Fair Value Of Options |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | 2017 |  | 2016 |  | 2015
﻿ | Stock |  | ESPP |  | Stock |  | ESPP |  | Stock |  | ESPP
﻿ | Options |  | Options |  | Options |  | Options |  | Options |  | Options
﻿Expected life of options | 4.75 Years |  | 0.5 Years |  | 4.75 Years |  | 0.5 Years |  | 4.5 Years |  | 0.5 Years
﻿Expected stock price volatility | 0.40 |  | 0.39 |  | 0.40 |  | 0.30 |  | 0.44 |  | 0.32
﻿Dividend yield | --% |  | --% |  | --% |  | --% |  | 1.12% |  | 1.06%
﻿Risk-free interest rate | 1.87% |  | 0.85% |  | 1.20% |  | 0.43% |  | 1.41% |  | 0.12%
﻿
Summary Of Total Stock Compensation Expenses |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | 2017 |  | 2016 |  | 2015
﻿RSA, PSA, RSU, and PSU expense | $ | 5,335 |  | $ | 4,966 |  | $ | 3,955
﻿Stock option and ESPP option expense |  | 1,978 |  |  | 1,636 |  |  | 1,371
﻿Total stock compensation expense | $ | 7,313 |  | $ | 6,602 |  | $ | 5,326
﻿

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