Fair Value Disclosures, Part 2 (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Impairment charges recognized [Abstract]
Capitalized mortgage loan servicing rights, carrying amount	$ 7,600,000		$ 7,600,000		$ 7,800,000
Capitalized mortgage loan servicing rights, valuation allowance	3,300,000		3,300,000		2,900,000
Capitalized mortgage loan servicing rights recoveries	(200,000)	1,700,000	(500,000)	2,500,000
Collateral dependent loans, carrying amount	10,100,000		10,100,000		10,800,000
Collateral dependent loans, valuation allowance	2,400,000		2,400,000		3,400,000
Additional provision for loan losses on impaired loans	200,000	(700,000)	1,500,000	(300,000)
Other real estate, carrying amount	5,300,000		5,300,000		5,900,000
Other real estate, valuation allowance	3,600,000		3,600,000		4,000,000
Other real estate, additional charge	30,000	1,000,000	60,000	1,600,000
Warrant reclassified into shareholders' equity, fair value				1,500,000
Amended Warrant [Member]
Liability [Roll Forward]
Beginning balance	0	(1,504,000)	0	(459,000)
Total gains (losses) realized and unrealized:
Included in results of operations	0	20,000	0	(1,025,000)
Included in other comprehensive income	0	0	0	0
Purchases, issuances, settlements, maturities and calls	0	0	0	0
Reclassification to shareholders' equity	0	1,484,000	0	1,484,000
Transfers in and/or out of Level 3	0	0	0	0
Ending balance	0	0	0	0
Amended Warrant [Member] | Other Income [Member]
Total gains (losses) realized and unrealized:
Amount of total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at June 30	0	20,000	0	(1,025,000)
Trading Securities [Member]
Changes in fair value for financial assets [Abstract]
Net Gains (Losses) on Assets			111,000	183,000
Total Change in Fair Values Included in Current Period Earnings			111,000	183,000
Loans Receivable [Member]
Changes in fair value for financial assets [Abstract]
Net Gains (Losses) on Assets			348,000	(2,241,000)
Total Change in Fair Values Included in Current Period Earnings			$ 348,000	$ (2,241,000)