|
Commitments and Contingencies (Details Textual) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Loss Contingencies [Line Items] | |||
| Rental payment of leases | $ 1,640 | $ 1,564 | $ 1,615 |
| Sublease Income | |||
| Loss Contingencies [Line Items] | |||
| Rental payment of leases | $ 910 | $ 996 | $ 751 |