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Loans and Allowance for Loan Losses (Details Narrative) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off		$ 9,300		$ 6,700
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans		79		43
Impaired Financing Receivable, Recorded Investment, Total		9,259		6,728
Loans and Leases Receivable, Impaired, Commitment to Lend		32
Provision For Loan Losses Reversal		30
Loans and Leases Receivable, Allowance	$ 5,507	5,379	$ 5,507	5,344	$ 5,326	$ 5,652	$ 5,922
Trouble Debt Restructurings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off	2		215
Loans Receivable, Gross, Commercial, Agricultural		15
Loans and Leases Receivable, Allowance		50		80
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross, Commercial, Real Estate, Total		11
Loans and Leases Receivable, Allowance	1,736	1,720	1,736	$ 1,777	$ 1,709	1,776	$ 1,740
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross, Commercial, Real Estate, Total		25				188
Agriculture Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off		215
Loans Receivable, Gross, Commercial, Agricultural	$ 302	87	$ 302
Impaired Financing Receivable, Recorded Investment, Total
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Gross, Commercial, Real Estate, Total						$ 8

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Amount of loan losses provision reversed.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Publisher FASB
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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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Amount before allowance of loans issued to agricultural institutions. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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