Fair Value - Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financial Assets:
Cash and cash equivalents	$ 67,839	$ 20,790
Securities available-for-sale, at fair value	14,140	17,075
Loans receivable held for sale		19,679
Loans receivable held for investment	306,643	277,000
Accrued interest receivable	1,077	1,216
Federal Home Loan Bank stock	2,573	4,254
Financial Liabilities:
Deposits	265,495	210,181
Federal Home Loan Bank advances	73,441	88,246
Junior subordinated debentures	3,117	2,034
Accrued interest payable	52	69
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets:
Cash and cash equivalents	67,839	20,790
Securities available-for-sale, at fair value	1,973	1,957
Accrued interest receivable	63	78
Federal Home Loan Bank stock	2,573	4,254
Significant Other Observable Unobservable Inputs (Level 2)
Financial Assets:
Securities available-for-sale, at fair value	12,167	15,118
Loans receivable held for sale		19,679
Accrued interest receivable	31	88
Financial Liabilities:
Deposits	265,495	210,181
Federal Home Loan Bank advances	73,441	88,246
Accrued interest payable	46	39
Significant Unobservable Inputs (Level 3)
Financial Assets:
Loans receivable held for investment	306,643	277,000
Accrued interest receivable	983	1,050
Financial Liabilities:
Junior subordinated debentures	3,117	2,034
Accrued interest payable	6	30
Carrying Value
Financial Assets:
Cash and cash equivalents	67,839	20,790
Securities available-for-sale, at fair value	14,140	17,075
Loans receivable held for sale		19,481
Loans receivable held for investment	304,171	276,643
Accrued interest receivable	1,077	1,216
Federal Home Loan Bank stock	2,573	4,254
Financial Liabilities:
Deposits	272,614	217,867
Federal Home Loan Bank advances	72,000	86,000
Junior subordinated debentures	5,100	5,100
Accrued interest payable	$ 52	$ 69