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Treasury Stock (Details Textual) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Treasury Stock [Abstract] | |||
| Number of repurchase of shares authorized by board of directors | $ 10,000 | $ 10,000 | |
| Number of common stock repurchased under plan | 1,813 | 1,756 | |
| Cash consideration paid for repurchase of common stock | 9,579 | 9,997 | |
| Weighted average price per share of stock repurchase | $ 5.25 | $ 5.66 | |
| Commissions paid to brokers | $ 54 | $ 53 | |