Stock Based Compensation (Details Textual) (USD $)	12 Months Ended				12 Months Ended				12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Apr. 30, 2000 Stock Option Plan [Member]	Dec. 31, 2012 Stock Incentive Plan [Member]	May 31, 2008 Stock Incentive Plan [Member]	Jun. 30, 2005 Stock Incentive Plan [Member]	Jun. 06, 2005 Stock Incentive Plan [Member]	Dec. 31, 2012 Stock Option Plan to Advance the Interests [Member]	Apr. 17, 2000 Stock Option Plan to Advance the Interests [Member]	Apr. 30, 2000 Stock Option Plan to Advance the Interests [Member] Maximum [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2011 Restricted Stock [Member]	Dec. 31, 2010 Restricted Stock [Member]
Stock Options (Textual) [Abstract]
Shares Authorized for future issuance								300,000		115,500
Plan termination date					Jun. 05, 2015				Mar. 20, 2010
Shares Available for future issuance					63,792
Options granted, exercise period											10 years
Fair value of shares vested												$ 157,000	$ 91,000	$ 39,000
Share based compensation vesting period												3 years 1 month 6 days
Stock Options (Additional Textual) [Abstract]
Stock options compensation expense	203,000	168,000	154,000
Total unrecognized compensation expense related to non-vested shares of restricted stock granted	10,000
Weighted average period over which unrecognized compensation is expected to be recognized	9 months
Restricted stock compensation expense	$ 399,000