Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
With no related allowance [Member]
Impaired loans
Recorded Investment	$ 2,145	$ 2,803	$ 12,679
Unpaid Principal Balance	3,266	6,716	25,025
Related Allowance	0	0
Average Recorded Investment	2,207	3,141	17,841
Interest Income Recognized	69	36	39
With related allowance [Member]
Impaired loans
Recorded Investment	20,582	21,913	7,839
Unpaid Principal Balance	21,001	21,990	8,457
Related Allowance	1,418	1,760	1,597
Average Recorded Investment	21,075	18,916	8,050
Interest Income Recognized	821	1,174	131
Construction [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	14	0	1,549
Unpaid Principal Balance	14	0	5,558
Related Allowance	0	0
Average Recorded Investment	0	0	3,389
Interest Income Recognized	0	0
Construction [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	0	19
Unpaid Principal Balance	0	0
Related Allowance	0	3
Average Recorded Investment	17	0
Interest Income Recognized	1	1
Land, Farmland, Ag Loans [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	558	0
Unpaid Principal Balance	972	0
Related Allowance	0	0
Average Recorded Investment	584	0
Interest Income Recognized	22	0
Land, Farmland, Ag Loans [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	230	1,203
Unpaid Principal Balance	230	1,216
Related Allowance	68	208
Average Recorded Investment	239	1,276
Interest Income Recognized	18	74
Residential [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	0	1,945	3,122
Unpaid Principal Balance	0	3,579	4,854
Related Allowance	0	0
Average Recorded Investment	0	2,273	3,866
Interest Income Recognized	0	7	19
Residential [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	11,107	8,922	2,706
Unpaid Principal Balance	11,473	9,033	3,306
Related Allowance	500	720	256
Average Recorded Investment	11,400	8,233	3,078
Interest Income Recognized	377	456
Commercial [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	1,572	695	4,122
Unpaid Principal Balance	1,619	2,015	8,239
Related Allowance	0	0
Average Recorded Investment	1,623	703	5,765
Interest Income Recognized	47	27	6
Commercial [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	3,674	6,612	4,503
Unpaid Principal Balance	3,700	6,612	4,521
Related Allowance	369	335	1,171
Average Recorded Investment	3,730	4,404	4,589
Interest Income Recognized	178	358	131
Consumer [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Consumer [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	491	128
Unpaid Principal Balance	518	100
Related Allowance	40	41
Average Recorded Investment	536	25
Interest Income Recognized	17	0
Commercial and Industrial [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	0	112	706
Unpaid Principal Balance	0	151	1,208
Related Allowance	0	0
Average Recorded Investment	0	113	1,035
Interest Income Recognized	0	2	11
Commercial and Industrial [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	539	396	630
Unpaid Principal Balance	539	396	630
Related Allowance	25	27	170
Average Recorded Investment	566	304	383
Interest Income Recognized	18	26
Multi-Family [Member] | With no related allowance [Member]
Impaired loans
Recorded Investment	1	51	3,180
Unpaid Principal Balance	661	971	5,166
Related Allowance	0	0
Average Recorded Investment	0	52	3,786
Interest Income Recognized	0	0	3
Multi-Family [Member] | With related allowance [Member]
Impaired loans
Recorded Investment	4,541	4,633
Unpaid Principal Balance	4,541	4,633
Related Allowance	416	426
Average Recorded Investment	4,587	4,674
Interest Income Recognized	$ 212	$ 259