Compensation Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Restricted stock
Stock Option Plan and Board of Directors Activity
Serial vesting, first vesting year from anniversary of grant date			3 years
Serial vesting, second vesting year from anniversary of grant date			5 years
Compensation expense	$ 48	$ 14	$ 162	$ 31
Unrecognized compensation expense
Total unrecognized compensation expense	564		564
Weighted average term for amortization of unrecognized compensation expense (in years)			3 years 1 month 14 days
Stock options
Stock Option Plan and Board of Directors Activity
Compensation expense	$ 14	$ 16	$ 41	$ 48
Independent Director Stock Option Plan | Stock options
Options granted and exercised
Options granted (in shares)			70
Options exercised (in shares)			1