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Stockholders' Equity (Details Textual) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
Stockholders' Equity (Details Textual) (USD $)	Aug. 31, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Stockholders Equity (Textual) [Abstract]
Common stock repurchase authorized	$ 1,000,000						$ 4,000,000
Common stock remained available				$ 551,000		$ 551,000
Repurchase of common stock		0	43,249	0	43,249
Common stock repurchase average price per share			$ 8.98		$ 8.98

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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