Shareholders' Equity (Schedule of Assumptions Used to Value Options Granted to Employees) (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Stock-Based Compensation [Abstract] | |||
| Fair value on grant date | $ 2.37 | $ 2.30 | $ 2.86 |
| Expected dividend yield | |||
| Expected volatility | 50.00% | 50.00% | 64.00% |
| Risk free interest rate | 1.80% | 1.68% | 1.62% |
| Expected term of the option | 5 years | 5 years | 5 years |