PARENT COMPANY FINANCIAL STATEMENTS, Condensed Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
ASSETS
Cash and due from banks	$ 32,473	$ 29,380
Premises and equipment	15,952	16,355
Other assets	683	3,380
Total assets	1,120,787	1,124,087
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	3,268	2,872
Other borrowed funds	16,049	18,130
Total liabilities	976,491	980,080
Stockholders' equity
Preferred stock	11,896	21,949
Common stock	72,849	71,571
Retained earnings	52,975	45,474
Accumulated other comprehensive income (loss)	6,576	5,013
Total stockholders' equity	144,296	144,007	131,397	128,556
Total liabilities and stockholders' equity	1,120,787	1,124,087
Parent Company [Member]
ASSETS
Cash and due from banks	6,130	7,795
Investment in subsidiaries	152,885	152,819
Premises and equipment	191	140
Other assets	1,957	1,981
Total assets	161,163	162,735
LIABILITIES AND STOCKHOLDERS' EQUITY
Other liabilities	818	598
Other borrowed funds	16,049	18,130
Total liabilities	16,867	18,728
Stockholders' equity
Preferred stock	11,896	21,949
Common stock	72,849	71,571
Retained earnings	52,975	45,474
Accumulated other comprehensive income (loss)	6,576	5,013
Total stockholders' equity	144,296	144,007
Total liabilities and stockholders' equity	$ 161,163	$ 162,735