Fair Value Disclosures - Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Estimated fair values and carrying values of all financial instruments
Maximum maturity period for Federal Home Loan Bank advances recorded at carrying value	90 days
Financial assets:
Securities available for sale	$ 75,813	$ 45,127
Financial liabilities:
Junior subordinated debentures	3,093	3,093
Subordinated notes	4,983	4,981
Level 2 | Carrying Amount
Financial assets:
Cash and cash equivalents	71,551	93,251
Securities available for sale	75,813	45,127
Loans held for sale	2,831	8,858
Accrued interest receivable	2,216	1,542
Bank-owned life insurance	19,459	17,822
Servicing asset	426
Non-marketable equity securities	4,167	4,139
Financial liabilities:
Deposits	868,410	638,743
Advances from FHLB	28,444	40,000
Accrued interest payable	108	126
Junior subordinated debentures	3,093	3,093
Subordinated notes	4,983	4,981
Level 2 | Total Fair Value
Financial assets:
Cash and cash equivalents	71,551	93,251
Securities available for sale	75,813	45,127
Loans held for sale	2,831	8,858
Accrued interest receivable	2,216	1,542
Bank-owned life insurance	19,459	17,822
Servicing asset	426
Non-marketable equity securities	4,167	4,139
Financial liabilities:
Deposits	844,966	630,402
Advances from FHLB	28,826	40,028
Accrued interest payable	108	126
Junior subordinated debentures	3,093	3,093
Subordinated notes	4,983	4,981
Level 3 | Carrying Amount
Financial assets:
Loans, net	813,733	597,278
Level 3 | Total Fair Value
Financial assets:
Loans, net	$ 811,455	$ 596,138