Fair Value, by Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Investment securities:
Available for sale	$ 15,154	$ 15,686
Loans secured by real estate:
Less allowance for loan losses	37,204	56,616
Carrying Value [Member]
Financial assets:
Cash	27,034	48,280
Cash equivalents	232,316	241,454
Loans held for sale
Investment securities:
Available for sale	15,154	15,686
Federal Home Loan Bank and Federal Reserve Bank stock	8,369	9,847
Loans secured by real estate:
Commercial	589,873	704,129
Residential (including multi-family)	182,626	229,855
Construction, land development and other land	38,297	47,133
Total loans secured by real estate	810,796	981,117
Commercial and other business-purpose loans	84,900	118,574
Consumer	6,104	7,936
Other	3,928	2,041
Total portfolio loans	905,728	1,109,668
Less allowance for loan losses	(37,204)	(56,616)
Net portfolio loans	868,524	1,053,052
Deposits:
Noninterest-bearing	242,193	302,528
Interest-bearing:
Demand accounts	372,124	438,797
Time certificates of less than $100,000	227,308	280,549
Time Deposits 100000 Or More Fair Value Disclosure	319,386	381,978
Total interest-bearing	918,818	1,101,324
Total deposits	1,161,011	1,403,852
Notes payable and other borrowings	4,926	5,426
Estimate Fair Value [Member]
Loans secured by real estate:
Total loans secured by real estate	806,092	978,224
Total portfolio loans	900,661	1,106,617
Net portfolio loans	863,457	1,050,001
Interest-bearing:
Total interest-bearing	921,665	1,106,502
Total deposits	1,163,858	1,409,030
Estimate Fair Value [Member] \| Fair Value, Level 1 [Member]
Financial assets:
Cash	27,034	48,280
Deposits:
Noninterest-bearing	242,193	302,528
Estimate Fair Value [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Cash equivalents	232,316	241,454
Loans held for sale
Investment securities:
Available for sale	15,154	15,686
Federal Home Loan Bank and Federal Reserve Bank stock	8,369	9,847
Interest-bearing:
Demand accounts	372,124	438,797
Estimate Fair Value [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Loans secured by real estate:
Commercial	585,264	700,865
Residential (including multi-family)	182,493	230,105
Construction, land development and other land	38,335	47,254
Commercial and other business-purpose loans	84,511	118,347
Consumer	6,279	8,134
Other	3,779	1,912
Less allowance for loan losses	(37,204)	(56,616)
Interest-bearing:
Time certificates of less than $100,000	228,603	283,101
Time Deposits 100000 Or More Fair Value Disclosure	320,938	384,604
Notes payable and other borrowings	$ 6,182	$ 6,667

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

No definition available.