Deposits (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of major types of deposits [Abstract]
Noninterest-bearing demand	$ 261,310	$ 219,250
NOW accounts	345,599	276,288
Money market	295,441	327,256
Savings	112,725	99,882
Time deposits	447,898	543,668
Total deposits	1,462,973	1,466,344
Scheduled of maturities of time deposits [Abstract]
Less than 1 year	263,802
1 - 2 years	115,678
2 - 3 years	49,621
3 - 4 years	9,575
4 - 5 years	9,222
Over 5 years	0
Total	447,898	543,668
Time deposits of $100,000 or more [Member]
Schedule of major types of deposits [Abstract]
Time deposits	200,589
Scheduled of maturities of time deposits [Abstract]
Less than 1 year	120,957
1 - 2 years	44,018
2 - 3 years	23,945
3 - 4 years	5,672
4 - 5 years	5,997
Over 5 years	0
Total	200,589
All other time deposits [Member]
Schedule of major types of deposits [Abstract]
Time deposits	247,309
Scheduled of maturities of time deposits [Abstract]
Less than 1 year	142,845
1 - 2 years	71,660
2 - 3 years	25,676
3 - 4 years	3,903
4 - 5 years	3,225
Over 5 years	0
Total	$ 247,309