Fair Value Measurements - Carrying amounts and estimated fair values of the financial instruments (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financial assets:
Interest earning demand deposits	$ 5,635	$ 5,773
Securities available for sale	18,363	17,747
Securities - held-to-maturity	7,329	7,420
Carrying Amount | Level 1
Financial assets:
Cash and due from banks	1,547	1,634
Interest earning demand deposits	5,635	5,773
Accrued interest receivable	705	652
Financial liabilities:
Demand Deposits, Savings, NOW and MMDA	96,522	94,926
Accrued interest payable	78	71
Carrying Amount | Level 2
Financial assets:
Securities available for sale	18,363	17,747
Securities - held-to-maturity	7,329	7,420
Investment in FHLB stock	3,369	2,886
Loans held for sale	3,934	2,059
Financial liabilities:
Time Deposits	90,162	88,008
Borrowings	65,761	56,813
Carrying Amount | Level 3
Financial assets:
Loans, net	235,787	226,192
Fair Value | Level 1
Financial assets:
Cash and due from banks	1,547	1,634
Interest earning demand deposits	5,635	5,773
Accrued interest receivable	705	652
Financial liabilities:
Demand Deposits, Savings, NOW and MMDA	96,522	94,926
Accrued interest payable	78	71
Fair Value | Level 2
Financial assets:
Securities available for sale	18,363	17,747
Securities - held-to-maturity	7,328	7,384
Investment in FHLB stock	3,369	2,886
Loans held for sale	3,934	2,059
Financial liabilities:
Time Deposits	90,458	88,043
Borrowings	64,410	57,008
Fair Value | Level 3
Financial assets:
Loans, net	$ 238,627	$ 225,569