Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
With No Related Allowance [Member]
Impaired loans
Recorded Investment	$ 1,777		$ 1,777		$ 2,803
Unpaid Principal Balance	3,932		3,932		6,716
Related Allowance	0		0
Average Recorded Investment	2,198	2,576	1,824	2,460
Interest Income Recognized	1	12	16	23
With Related Allowance [Member]
Impaired loans
Recorded Investment	25,343		25,343		21,913
Unpaid Principal Balance	25,747		25,747		21,990
Related Allowance	1,533		1,533		1,760
Average Recorded Investment	25,534	18,832	25,646	18,390
Interest Income Recognized	284	161	583	296
Construction [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	0	0
Interest Income Recognized	0	0	0	0
Construction [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	17		17		19
Unpaid Principal Balance	17		17
Related Allowance	4		4		3
Average Recorded Investment	19	0	18
Interest Income Recognized	0	0
Land, Farmland, Ag Loans [Member] | With No Related Allowance [Member]
Impaired loans
Recorded Investment	666		666
Unpaid Principal Balance	1,022		1,022
Related Allowance	0		0
Average Recorded Investment	1,024	1,207	667	1,095
Interest Income Recognized	1	12	16	23
Land, Farmland, Ag Loans [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	238		238		1,203
Unpaid Principal Balance	238		238		1,216
Related Allowance	25		25		208
Average Recorded Investment	246	200	243	165
Interest Income Recognized	2	18	9	22
Residential [Member] | With No Related Allowance [Member]
Impaired loans
Recorded Investment	507		507		1,945
Unpaid Principal Balance	641		641		3,579
Related Allowance	0		0
Average Recorded Investment	567	401	551	398
Interest Income Recognized	0	0	0	0
Residential [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	11,651		11,651		8,922
Unpaid Principal Balance	12,013		12,013		9,033
Related Allowance	481		481		720
Average Recorded Investment	11,856	5,984	11,756	5,624
Interest Income Recognized	94	40	194	63
Commercial [Member] | With No Related Allowance [Member]
Impaired loans
Recorded Investment	504		504		695
Unpaid Principal Balance	1,507		1,507		2,015
Related Allowance	0		0
Average Recorded Investment	504	902	504	901
Interest Income Recognized	0	0	0	0
Commercial [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	8,232		8,232		6,612
Unpaid Principal Balance	8,232		8,232		6,612
Related Allowance	540		540		335
Average Recorded Investment	8,104	8,172	8,361	8,149
Interest Income Recognized	127	51	253	106
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	0	0
Interest Income Recognized	0	0	0	0
Consumer [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	259		259		128
Unpaid Principal Balance	301		301		100
Related Allowance	18		18		41
Average Recorded Investment	298	0	280
Interest Income Recognized	2	0	8
Commercial and industrial [Member] | With No Related Allowance [Member]
Impaired loans
Recorded Investment	100		100		112
Unpaid Principal Balance	101		101		151
Related Allowance	0		0
Average Recorded Investment	103	0	102	0
Interest Income Recognized	0	0	0	0
Commercial and industrial [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	358		358		396
Unpaid Principal Balance	358		358		396
Related Allowance	59		59		27
Average Recorded Investment	389	415	377	406
Interest Income Recognized	5	4	12	10
Multi-Family [Member] | With No Related Allowance [Member]
Impaired loans
Recorded Investment	0		0		51
Unpaid Principal Balance	661		661		971
Related Allowance	0		0
Average Recorded Investment	0	66	0	66
Interest Income Recognized	0	0	0	0
Multi-Family [Member] | With Related Allowance [Member]
Impaired loans
Recorded Investment	4,588		4,588		4,633
Unpaid Principal Balance	4,588		4,588		4,633
Related Allowance	406		406		426
Average Recorded Investment	4,622	4,061	4,611	4,046
Interest Income Recognized	$ 54	$ 48	$ 107	$ 95