CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,049	$ 3,279
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	662	612
Amortization and accretion of premiums and discounts on investments, net	965	330
Accretion of deferred loan fees, net	(78)	(188)
Amortization of mortgage servicing rights, net	92	119
Additions to mortgage servicing rights, net	(98)	(69)
Provision for loan losses	705	500
Gain on sale of real estate owned and repossessed assets	0	(40)
Allocation of ESOP shares	437	395
Share-based compensation	532	467
Gain on sale of loans, net	(317)	(328)
Gain on sale of securities available for sale, net	(108)	0
Gain on sale of securities held to maturity, net	(27)	0
Increase in cash surrender value of life insurance, net	(298)	(337)
Income from death benefit on bank-owned life insurance, net	0	(768)
Origination of loans held for sale	(11,684)	(17,208)
Proceeds from loans held for sale	11,227	18,013
Change in assets and liabilities:
Increase in accrued interest receivable	(154)	(5)
Increase in prepaid expenses and other assets	(147)	(1,164)
Increase in accrued interest payable	49	4
Increase in accrued expenses and other liabilities	1,406	1,860
Net cash from operating activities	6,213	5,472
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of securities available for sale	(37,681)	(41,509)
Proceeds from maturities, calls, and principal repayments of securities available for sale	13,348	36,242
Proceeds from sales of securities available for sale	54,704	0
Proceeds from maturities, calls, and principal repayments of securities held to maturity	5,542	1,748
Proceeds from sales of securities held to maturity	2,702	0
Redemption (purchase) of FHLB stock	502	(569)
Proceeds from sale of real estate owned and repossessed assets	46	180
Net increase in loans receivable	(42,958)	(36,811)
Purchase of premises and equipment, net	(1,712)	(164)
Net cash from investing activities	(5,507)	(40,883)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	8,294	29,688
Proceeds from FHLB advances	372,132	167,440
Repayment of FHLB advances	(389,961)	(155,896)
Net (decrease) increase in advances from borrowers for taxes and insurance	(235)	(64)
Repurchase of common stock	(4,853)	(4,115)
Net cash from financing activities	(14,623)	37,053
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(13,917)	1,642
CASH AND CASH EQUIVALENTS, beginning of period	36,801	22,650
CASH AND CASH EQUIVALENTS, end of period	22,884	24,292
Cash paid during the year for:
Interest on deposits and borrowings	3,947	2,714
Income taxes	250	845
NONCASH INVESTING ACTIVITIES
Unrealized (loss) gain on securities available for sale	(4,127)	1,219
Loans transferred to real estate owned and repossessed assets, net of deferred loan fees and allowance for loan losses	$ 102	$ 134

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Supplement Cash Flow Information, Cash Paid During The Year [Abstract]

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The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

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The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments.

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Amount of unrealized gain (loss) on investments in debt and equity securities classified as available-for-sale securities.

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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount 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. Includes effect from exchange rate changes.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of increase (decrease) in prepayments received from borrowers for taxes and insurance remitted to the appropriate tax authority or insurer on behalf of the borrower.

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Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount of cash outflow from payments for Federal Home Loan Bank (FHLBank) advances.

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Amount of cash outflow (inflow) from acquisition (sale) of Federal Home Loan Bank (FHLBank) stock.

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The cash outflow to reacquire common stock during the period.

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The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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Amount of cash inflow from proceeds of Federal Home Loan Bank (FHLBank) advances.

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No definition available.

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The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

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The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.

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The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.

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Amount of expense related to estimated loss from loan and lease transactions.

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The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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