Acquisition (Detail Textuals) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Nov. 09, 2012 Area	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Acquisition expense		$ 9	$ 81	$ 18	$ 124
Dupont State Bank
Business Acquisition [Line Items]
Acquisition amount paid for stock	5,700
Bargain purchase gain	(988)
Acquisition expense		9	81	18	124	382	212
Number of market area	2
Fair value of assets acquired, Loans	52,125
Gross principal and contractual interest due under the contracts	53,982
Gross principal and contractual interest due under the contracts expected to be uncollectible	$ 2,960