Fair Value Measurements, Fair value hierarchy (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financial assets [Abstract]
Cash and cash equivalents	$ 8,795		$ 12,727
Available for sale securities	19,713		22,900
FHLB Stock	2,379		2,401
Loans held for sale	2,083		1,725
Loans, net	341,695		327,078
Accrued interest receivable	1,303		1,280
Bank owned life insurance, net	10,798		7,220
Mortgage servicing rights	2,396		2,306
Financial liabilities [Abstract]
Non-maturity deposits	171,851		177,097
Time deposits	146,266		134,007
Borrowings	25,567		21,708
Accrued interest payable	78		83
Advance payments from borrowers for taxes and insurance	585		331
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and Repossessed Assets, Total Losses	675	469
Impaired Loans, Total Losses	494	1,615
Asset transfers from Level 1 to Level 2	0
Asset transfers from Level 2 into Level 3	0
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Agency mortgage-backed securities	17,016		20,127
Non-agency mortgage-backed securities	2,697		2,773
Mortgage servicing rights	2,396		2,306
Liabilities carried at fair value	0		0
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and Repossessed Assets	2,453		2,503
Impaired Loans	10,869		11,993
Liabilities carried at fair value	0		0
Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	8,795		12,727
Available for sale securities	0		0
FHLB Stock	0		0
Loans held for sale	0		0
Loans, net	0		0
Accrued interest receivable	1,303		1,280
Bank owned life insurance, net	0		0
Mortgage servicing rights	0		0
Financial liabilities [Abstract]
Non-maturity deposits	0		0
Time deposits	0		0
Borrowings	0		0
Accrued interest payable	0		0
Advance payments from borrowers for taxes and insurance	0		0
Level 1 [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Agency mortgage-backed securities	0		0
Non-agency mortgage-backed securities	0		0
Mortgage servicing rights	0		0
Level 1 [Member] \| Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and Repossessed Assets	0		0
Impaired Loans	0		0
Level 2 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0		0
Available for sale securities	17,016		20,127
FHLB Stock	0		0
Loans held for sale	2,083		1,725
Loans, net	0		0
Accrued interest receivable	0		0
Bank owned life insurance, net	10,798		7,220
Mortgage servicing rights	0		0
Financial liabilities [Abstract]
Non-maturity deposits	171,851		177,097
Time deposits	146,266		134,007
Borrowings	25,567		21,708
Accrued interest payable	78		83
Advance payments from borrowers for taxes and insurance	585		331
Level 2 [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Agency mortgage-backed securities	17,016		20,127
Non-agency mortgage-backed securities	0		0
Mortgage servicing rights	0		0
Level 2 [Member] \| Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and Repossessed Assets	0		0
Impaired Loans	0		0
Level 3 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0		0
Available for sale securities	2,697		2,773
FHLB Stock	2,379		2,401
Loans held for sale	0		0
Loans, net	341,695		327,078
Accrued interest receivable	0		0
Bank owned life insurance, net	0		0
Mortgage servicing rights	2,396		2,306
Financial liabilities [Abstract]
Non-maturity deposits	0		0
Time deposits	0		0
Borrowings	0		0
Accrued interest payable	0		0
Advance payments from borrowers for taxes and insurance	0		0
Level 3 [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Agency mortgage-backed securities	0		0
Non-agency mortgage-backed securities	2,697		2,773
Mortgage servicing rights	2,396		2,306
Level 3 [Member] \| Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and Repossessed Assets	2,453		2,503
Impaired Loans	$ 10,869		$ 11,993

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This element represents the portion of accrued interest receivable valued at fair value by the entity.

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This element represents the portion of advance payments from borrowers for taxes and insurance valued at fair value by the entity.

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This element represents the portion of agency mortgage-backed securities valued at fair value by the entity.

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This element represents the portion of demand deposits valued at fair value by the entity.

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Refers to the Impaired Loans losses resulting from fair value adjustments during the period.

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This element represents the portion of OREO and repossessed assets valued at fair value by the entity.

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Refers to OREO and Repossessed Assets losses resulting from fair value adjustments during the period.

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This element represents the portion of time deposits valued at fair value by the entity.

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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 represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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-Name Emerging Issues Task Force (EITF)

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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Transfers into assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

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-Number AAG-DEP

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This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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