|
Property and Equipment (Details Textual) (USD $)
|
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
|
| Property and Equipment (Textual) [Abstract] | ||||
| Depreciation expenses | $ 87,000 | $ 67,000 | $ 143,000 | $ 131,000 |