|
Available-for-Sale Investments (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Dec. 31, 2012
|
|
| Schedule of Available-for-sale Securities [Line Items] | |||
| Accumulated other comprehensive income | $ 329 | $ 222 | |
| Liabilities settled with common stock | $ 84 | $ 0 | |