Long-Term Debt (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Capitalization, Long-term Debt [Line Items]
Interest expense	$ 1,542,000	$ 2,105,000	$ 3,870,000
Prepaid long-term debt	20,000,000	16,000,000
Prepayment penalties	1,363,000	861,000	3,071,000
FHLB Obligations [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest expense	363,000	774,000
Securities Sold under Agreements to Repurchase [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest expense	$ 0	$ 141,000