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Summary Of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Summary Of Significant Accounting Policies [Abstract] |
Depreciation Of Property, Plant And Equipment |
|  | % |
Machinery and equipment |  |  | 15- 33 |
Office furniture and equipment |  |  | 6- 33 |
Leasehold improvements |  |  | 10- 20 |
Computation Of Basic And Diluted Income Per Ordinary Share |
|  | Year ended December 31 |
|  | 2010 |  |  | 2011 |  |  | 2012 |
Net income attributable to ordinary shares |  |  |  |  |  |  |  |  |
(US$ thousands) |  |  | 5,715 |  |  |  | 8,243 |  |  |  | 9,871 |
Weighted average number of ordinary shares outstanding |  |  |  |  |  |  |  |  |  |  |  |
used in basic income per ordinary share calculation |  |  | 6,820,721 |  |  |  | 6,896,215 |  |  |  | 6,933,576 |
Add assumed exercise of outstanding dilutive potential |  |  |  |  |  |  |  |  |  |  |  |
ordinary shares |  |  | 117,735 |  |  |  | 98,377 |  |  |  | 34,729 |
Weighted average number of ordinary shares outstanding |  |  |  |  |  |  |  |  |  |  |  |
used in diluted income per ordinary share calculation |  |  | 6,938,456 |  |  |  | 6,994,592 |  |  |  | 6,968,305 |
Basic income per ordinary shares (US$) |  |  | 0.838 |  |  |  | 1.195 |  |  |  | 1.424 |
Diluted income per ordinary shares (US$) |  |  | 0.824 |  |  |  | 1.178 |  |  |  | 1.417 |
Number of options and warrants excluded |  |  |  |  |  |  |  |  |  |  |  |
from the diluted earnings per share calculation |  |  |  |  |  |  |  |  |  |  |  |
because of anti-dilutive effect |  |  | 137,500 |  |  |  | 135,000 |  |  |  | 135,000 |

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