Stock-Based Compensation (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 Director group [Member]	Mar. 31, 2013 Director group [Member] 2008 Equity Incentive Plan [Member]	Mar. 31, 2013 Director Group 1 [Member] 2008 Equity Incentive Plan [Member]	Mar. 31, 2014 Employee [Member]	Mar. 31, 2013 Employee [Member] 2008 Equity Incentive Plan [Member]	Mar. 31, 2013 Employee inducement (1) [Member] 2008 Equity Incentive Plan [Member]
Summary of stock option grants
Grantee Type		Director group	Director group		Employee group	Employee inducement (1)
No. of Options Granted (shares)		7,122	17,092		5,000	20,000	[1]
Vesting Period		1 year or less
Vesting Period	1 year		3 years	3 years	3 years	3 years	[1]
Weighted Average Exercise Price (usd per share)		$ 6.83	$ 6.83		$ 6.83	$ 7.14	[1]
Weighted Average Grant Date Fair Value (usd per share)		$ 2.35	$ 3.76		$ 3.65	$ 3.81	[1]

[1] (1)The Company granted nonvested performance-based stock awards (restricted stock) outside its existing stock-based compensation plans in the first quarter of 2013 to one employee in connection with the employee joining the Company.