Share-Based Compensation - Additional Information (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended						12 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Stock options [Member]	Sep. 30, 2012 Stock options [Member]	Sep. 30, 2013 Restricted stock [Member] Installment	Sep. 30, 2012 Restricted stock [Member]	Dec. 31, 2012 Restricted stock [Member]	Sep. 30, 2013 Stock appreciation rights (SARs) [Member]	Sep. 30, 2012 Stock appreciation rights (SARs) [Member]	Dec. 31, 2006 Stock appreciation rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options granted			137,363	35,000
Maximum option term					10 years					10 years
General vesting period					3 years					3 years
Annual vesting percentage					33.33%
Expense recorded for share based compensation					$ 52	$ 9	$ 173	$ 220		$ 10	$ 2
Total intrinsic value of options exercised					$ 0
Closing stock price	$ 9.40		$ 9.40
Fair value of stock options granted (in dollars per share)	$ 2.35	$ 0	$ 2.15	$ 1.22
Shares issued							0		62,105
Purchase price of long term restricted share							$ 0.00		$ 5.39
Number of installments							2
Stock appreciation rights shares issued												30,000
Stock appreciation rights price of long term restricted share												$ 19.00
Shares expired due to employee terminations												15,500