Condensed Financial Information (Parent Company Only) - Condensed Balance Sheets - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and due from banks	$ 3,675	$ 1,881
Other assets	3,861	3,298
Total assets	472,855	406,643
Liabilities
Borrowings	49,717	65,217
Other liabilities	2,934	2,842
Total liabilities	437,268	373,686
Total stockholders' equity	35,587	32,957	31,468
Total liabilities and stockholders' equity	472,855	406,643
Parent Company
Assets
Cash and due from banks	478	62
Investment in common stock of the Bank	41,766	39,367
Investment in RVB Trust I	217	217
Dividends receivable		500
Other assets	365	350
Total assets	42,826	40,496
Liabilities
Borrowings	7,217	7,217
Dividends payable		318
Other liabilities	22	4
Total liabilities	7,239	7,539
Total stockholders' equity	35,587	32,957
Total liabilities and stockholders' equity	$ 42,826	$ 40,496