Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Supplemental Schedule of Cash and Cash Equivalents:
Cash and due from banks	$ 18,529	$ 15,873	$ 22,561
Interest-bearing deposits in other banks	10,380	23,310	6,332
Cash and Cash Equivalents	28,909	39,183	28,893	18,514
Cash paid for:
Interest on deposits and borrowed funds	4,547	4,183
Income taxes	72	1,141
Noncash investing and financing activities:
Transfer of loans to other real estate owned	2,705	674
Unrealized gain on securities available for sale	$ 448	$ 4,173