Impairment of Long-lived Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Impairment of Long-Lived Assets [Line Items]
Impairment of long-lived assets	$ 238	$ 225	$ 360	$ 225
Financial System Software [Member]
Impairment of Long-Lived Assets [Line Items]
Impairment of long-lived assets	200
Fixed Assets for Branch Offices [Member]
Impairment of Long-Lived Assets [Line Items]
Impairment of long-lived assets		$ 200