Fair Value Measurements - Carrying Amount and Estimated Fair Values (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financial Assets
Interest-bearing deposits in other financial institutions	$ 24,351	$ 11,018
Available-for-sale securities	48,560	53,547
Loans, net of allowance	355,572	354,537
Accrued interest receivable	1,435	1,622
Federal Home Loan Bank stock	2,053	2,025
Financial Liabilities
Subordinated debentures	5,000	5,000
Accrued interest payable	229	220
Level 1
Financial Assets
Cash and cash equivalents	6,769	8,542
Interest-bearing deposits in other financial institutions	24,351	11,018
Accrued interest receivable	16	16
Financial Liabilities
Demand and savings deposits	225,804	225,942
Accrued interest payable	14	12
Level 2
Financial Assets
Available-for-sale securities	47,180	52,307
Loans held for sale		266
Accrued interest receivable	241	268
Financial Liabilities
Time deposits	145,239	144,558
FHLB advances	39,914	34,897
Accrued interest payable	178	175
Level 3
Financial Assets
Available-for-sale securities	1,380	1,240
Loans, net of allowance	355,294	354,300
Accrued interest receivable	1,178	1,338
Financial Liabilities
Subordinated debentures	2,495	2,495
Accrued interest payable	37	33
Carrying Amount
Financial Assets
Cash and cash equivalents	6,769	8,542
Interest-bearing deposits in other financial institutions	24,351	11,018
Available-for-sale securities	48,560	53,547
Loans, net of allowance	355,572	354,537
Loans held for sale		264
Accrued interest receivable	1,435	1,622
Federal Home Loan Bank stock	2,053	2,025
Financial Liabilities
Demand and savings deposits	225,804	225,942
Time deposits	145,061	144,497
FHLB advances	40,000	35,000
Subordinated debentures	5,000	5,000
Accrued interest payable	229	220
Total
Financial Assets
Cash and cash equivalents	6,769	8,542
Interest-bearing deposits in other financial institutions	24,351	11,018
Available-for-sale securities	48,560	53,547
Loans, net of allowance	355,294	354,300
Loans held for sale		266
Accrued interest receivable	1,435	1,622
Financial Liabilities
Demand and savings deposits	225,804	225,942
Time deposits	145,239	144,558
FHLB advances	39,914	34,897
Subordinated debentures	2,495	2,495
Accrued interest payable	$ 229	$ 220

Represents the fair value of demand deposit liabilities held by the entity.

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Represents the amount of interest bearing deposit assets including deposits in other financial institutions.

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Represents the fair value of time deposit liabilities held by the entity.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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