Loans, Receivables Past Due (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	$ 12,191	$ 27,025
More Than 89 Days (Accruing)	2,296	670
Loans on Nonaccrual Status (Generally, 90 Days or More)	93,399	117,667
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	107,886	145,362
Loans Either Current or Less Than 30 Days Past Due	797,842	964,306
Total Portfolio Loans	905,728	1,109,668
Secured by Real Estate [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	9,495	23,639
More Than 89 Days (Accruing)	2,296	600
Loans on Nonaccrual Status (Generally, 90 Days or More)	87,034	108,076
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	98,825	132,315
Loans Either Current or Less Than 30 Days Past Due	711,971	848,802
Total Portfolio Loans	810,796	981,117
Commercial [Member] | Secured by Real Estate [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	6,487	13,629
More Than 89 Days (Accruing)	2,296	515
Loans on Nonaccrual Status (Generally, 90 Days or More)	62,333	75,811
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	71,116	89,955
Loans Either Current or Less Than 30 Days Past Due	518,757	614,174
Total Portfolio Loans	589,873	704,129
Residential (including multi-family) [Member] | Secured by Real Estate [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	2,966	5,768
More Than 89 Days (Accruing)		85
Loans on Nonaccrual Status (Generally, 90 Days or More)	18,312	25,620
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	21,278	31,473
Loans Either Current or Less Than 30 Days Past Due	161,348	198,382
Total Portfolio Loans	182,626	229,855
Construction, land development and other land [Member] | Secured by Real Estate [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	42	4,242
Loans on Nonaccrual Status (Generally, 90 Days or More)	6,389	6,645
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	6,431	10,887
Loans Either Current or Less Than 30 Days Past Due	31,866	36,246
Total Portfolio Loans	38,297	47,133
Commercial and other business-purpose loans [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	2,472	3,106
More Than 89 Days (Accruing)		70
Loans on Nonaccrual Status (Generally, 90 Days or More)	6,226	9,306
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	8,698	12,482
Loans Either Current or Less Than 30 Days Past Due	76,202	106,092
Total Portfolio Loans	84,900	118,574
Consumer [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	222	280
More Than 89 Days (Accruing)		0
Loans on Nonaccrual Status (Generally, 90 Days or More)	139	285
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	361	565
Loans Either Current or Less Than 30 Days Past Due	5,743	7,371
Total Portfolio Loans	6,104	7,936
Other [Member]
Summarize the aging and amounts of past due loans [Abstract]
More Than 29 Days, and Less Than 90 Days	2
More Than 89 Days (Accruing)	0
Loans on Nonaccrual Status (Generally, 90 Days or More)	0
Total Amount of Loans More Than 29 Days Past Due or on Nonaccrual Status	2
Loans Either Current or Less Than 30 Days Past Due	3,926	2,041
Total Portfolio Loans	$ 3,928	$ 2,041