Share Based Compensation (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended				1 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2012 Installments	Jun. 30, 2012 Stock Options [Member]	Jun. 30, 2011 Stock Options [Member]	Jun. 30, 2012 Stock Options [Member] Maximum [Member]	Jan. 31, 2011 Restricted Stock [Member]	Mar. 31, 2012 Restricted Stock [Member]	Jun. 30, 2012 Restricted Stock [Member]	Jun. 30, 2011 Restricted Stock [Member]	Dec. 31, 2006 Stock Appreciation Rights [Member]	Jun. 30, 2012 Stock Appreciation Rights (SARs) [Member]	Jun. 30, 2011 Stock Appreciation Rights (SARs) [Member]	Dec. 31, 2006 Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum option term												Jan. 01, 2016
Shares issued	35,000				40,000	62,105	62,105
General vesting period		3 years		10 years								3 years
Purchase price of long term restricted share					$ 5.28	$ 5.39	$ 5.39
Expense recorded for stock options		$ 1	$ 0				$ 144	$ 92		$ 2	$ 0
Stock appreciation rights price of long term restricted share									$ 19.00
Forfeited due to employee terminations	2,500
Shares expired due to employee terminations									15,500
Vesting Description	The maximum option term is ten years and the options generally vest over three years as follows: one-third after one year from the grant date, two-thirds after two years and completely after three years.									The SARS vest over three years as follows: one-third after one year from the grant date, two-thirds after two years and completely after three years.
Stock appreciation rights shares issued									30,000
Share Based Compensation (Textual) [Abstract]
Grants under nonqualified stock option	From 2005 to 2007
Weighted-average fair value of options granted	$ 5.39
Exercise of stock options
Total intrinsic value of options exercised	0
Total intrinsic value of options outstanding	$ 0
Number of installment	2