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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2013
Shareholders' Equity |
Schedule Of Stock-Based Compensation Expense |
Year ended December 31 |  | 2013 |  | 2012 |
Cost of sales |  | $ | 22,000 |  | $ | 93,000 |
Selling |  | 176,000 |  | 104,000 |
Marketing |  | 16,000 |  | 18,000 |
General and administrative |  | 319,000 |  | 127,000 |
|  | $ | 533,000 |  | $ | 342,000 |
Schedule Of Weighted Average Assumptions |
|  | 2013 |  | 2012 |
Stock Options: |  |  |  |  |
Expected life (years) |  | 3.9 |  | 4.2 |
Expected volatility |  | 52 | % | 71 | %
Dividend yield |  | 0 | % | 0 | %
Risk-free interest rate |  | 1.2 | % | 0.6 | %
|  | 2013 |  | 2012 |
Stock Purchase Plan Options: |  |  |  |  |
Expected life (years) |  | 1.0 |  | 1.0 |
Expected volatility |  | 51 | % | 46 | %
Dividend yield |  | 0 | % | 0 | %
Risk-free interest rate |  | 0.2 | % | 0.1 | %
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 December 31, 2011 |  | 21 |  | 1,234,737 |  | $ | 4.87 |  |  |
Reserved |  | 500,000 |  | — |  |  |  |  |
Granted |  | (737,500 | ) | 737,500 |  | 1.67 |  |  |
Cancelled - 2003 Plan |  | 337,164 |  | (337,164 | ) | 3.77 |  |  |
Cancelled - 1990 Plan |  | — |  | (165,400 | ) | 9.19 |  |  |
Balance at December 31, 2012 |  | 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 - 2003 Plan |  | (99,685 | ) | (263,666 | ) | 3.64 |  |  |
Cancelled - 1990 Plan |  | — |  | (31,400 | ) | 10.37 |  |  |
Balance at December 31, 2013 |  | 95,968 |  | 1,251,442 |  | 2.72 |  |  |
Schedule Of The Number Of Options Exercisable |
December 31, 2012 |  | 572,552 |
December 31, 2013 |  | 686,998 |
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 |  | 784,701 |  | 8.60 years |  | $ | 1.81 |  | 288,839 |  | $ | 1.78 |
$2.79 - $4.22 |  | 324,741 |  | 6.78 years |  | 3.67 |  | 256,159 |  | 3.58 |
$5.49 |  | 142,000 |  | 6.08 years |  | 5.49 |  | 142,000 |  | 5.49 |
|  | 1,251,442 |  | 7.84 years |  | $ | 2.72 |  | 686,998 |  | $ | 3.22 |

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