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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2014
Shareholders' Equity |
Schedule Of Stock-Based Compensation Expense |
|  | 2014 |  | 2013 |
Cost of sales |  | $ | 6,000 |  | $ | 22,000 |
Selling |  | 87,000 |  | 176,000 |
Marketing |  | 12,000 |  | 16,000 |
General and administrative |  | 298,000 |  | 319,000 |
|  | $ | 403,000 |  | $ | 533,000 |
Schedule Of Weighted Average Assumptions |
|  | 2014 |  | 2013 |
Stock Options: |  |  |  |  |
Expected life (years) |  | 3.6 |  | 3.9 |
Expected volatility |  | 50 | % | 52 | %
Dividend yield |  | 0 | % | 0 | %
Risk-free interest rate |  | 1.0 | % | 1.2 | %
|  | 2014 |  | 2013 |
Stock Purchase Plan Options: |  |  |  |  |
Expected life (years) |  | 1.0 |  | 1.0 |
Expected volatility |  | 50 | % | 51 | %
Dividend yield |  | 0 | % | 0 | %
Risk-free interest rate |  | 0.1 | % | 0.2 | %
Summary Of Activity Under Stock Option Plans |
|  | Plan Shares Available for Grant |  | Plan Options Outstanding |  | Weighted Average Exercise Price Per Share |  | Aggregate Intrinsic Value |
Balance at January 1, 2013 |  | 99,685 |  | 1,469,673 |  | $ | 3.03 |  |  |
Reserved |  | 250,000 |  | — |  |  |  |  |
Stock awards granted |  | (39,032 | ) | — |  |  |  |  |
Granted |  | (115,000 | ) | 115,000 |  | 2.49 |  |  |
Exercised |  | — |  | (38,165 | ) | 1.84 |  | $ | 20,810 |
Cancelled or forfeited - 2003 Plan |  | (99,685 | ) | (263,666 | ) | 3.64 |  |  |
Cancelled or forfeited - 1990 Plan |  | — |  | (31,400 | ) | 10.37 |  |  |
Balance at December 31, 2013 |  | 95,968 |  | 1,251,442 |  | 2.72 |  |  |
Reserved |  | 650,000 |  | — |  |  |  |  |
Stock awards granted |  | (29,701 | ) | — |  |  |  |  |
Restricted stock units granted |  | (25,000 | ) | — |  |  |  |  |
Granted |  | (426,000 | ) | 426,000 |  | 3.02 |  |  |
Exercised |  | — |  | (155,407 | ) | 1.94 |  | $ | 217,694 |
Cancelled or forfeited - 2013 Plan |  | 42,500 |  | (42,500 | ) | 3.03 |  |  |
Cancelled or forfeited - 2003 Plan |  | — |  | (224,458 | ) | 2.95 |  |  |
Balance at December 31, 2014 |  | 307,767 |  | 1,255,077 |  | 2.86 |  |  |
Schedule Of The Number Of Options Exercisable |
December 31, 2013 |  | 686,998 |
December 31, 2014 |  | 710,598 |
Summary Of Information About Stock Options Outstanding |
|  | Options Outstanding |  | Options Exercisable |
Ranges of Exercise Prices |  | Number Outstanding |  | Weighted Average Remaining Contractual Life |  | Weighted Average Exercise Price Per Share |  | Number Exercisable |  | Weighted Average Exercise Price Per Share |
$1.61 - $2.46 |  | 532,831 |  | 7.40 years |  | $ | 1.85 |  | 351,852 |  | $ | 1.80 |
$2.79 - $4.22 |  | 621,246 |  | 7.76 years |  | 3.30 |  | 257,746 |  | 3.69 |
$5.49 |  | 101,000 |  | 3.87 years |  | 5.49 |  | 101,000 |  | 5.49 |
|  | 1,255,077 |  | 7.29 years |  | $ | 2.86 |  | 710,598 |  | $ | 3.01 |

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