Loans Receivable and Loans Held for Sale (Details 1) - Loans receivable - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 178,210	$ 181,607
Total past due	3,149	2,946
Total	181,359	184,553
30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	1,445	1,416
60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	415	520
Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 1,289	$ 1,010
Nonperforming loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current
Total past due	$ 1,289	$ 1,010
Total	$ 1,289	$ 1,010
Nonperforming loans | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Nonperforming loans | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Nonperforming loans | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 1,289	$ 1,010
Home equity, home improvement and second mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	32,029	32,291
Total past due	264	450
Total	32,293	32,741
Home equity, home improvement and second mortgages | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 142	193
Home equity, home improvement and second mortgages | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		2
Home equity, home improvement and second mortgages | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 122	255
Vehicle
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	1,647	1,661
Total past due	57	10
Total	1,704	1,671
Vehicle | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	22	8
Vehicle | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		1
Vehicle | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	35	1
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	6,069	6,243
Total past due	51	36
Total	6,120	6,279
Consumer | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	26	26
Consumer | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	16	$ 10
Consumer | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	9
Residential | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	54,930	$ 54,698
Total past due	2,002	1,976
Total	56,932	56,674
Residential | Real estate | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 1,112	782
Residential | Real estate | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		507
Residential | Real estate | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 890	687
Residential | Construction real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 813	$ 940
Total past due
Total	$ 813	$ 940
Residential | Construction real estate | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Residential | Construction real estate | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Residential | Construction real estate | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 33,674	$ 30,653
Total past due	22
Total	33,696	$ 30,653
Commercial | Real estate | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 22
Commercial | Real estate | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Real estate | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Construction real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 182	$ 4,035
Total past due
Total	$ 182	$ 4,035
Commercial | Construction real estate | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Construction real estate | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Construction real estate | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Operating and term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	$ 5,914	$ 5,569
Total past due	75	149
Total	5,989	5,718
Commercial | Operating and term | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 10	$ 82
Commercial | Operating and term | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Commercial | Operating and term | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 65	$ 67
Agricultural | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	36,924	37,843
Total past due	567	285
Total	$ 37,491	38,128
Agricultural | Real estate | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		$ 285
Agricultural | Real estate | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 399
Agricultural | Real estate | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	168
Agricultural | Operating and term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	6,028	$ 7,674
Total past due	111	40
Total	6,139	7,714
Agricultural | Operating and term | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due	$ 111	$ 40
Agricultural | Operating and term | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due
Agricultural | Operating and term | Loans Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due