Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 19,106	$ 20,484
Federal funds sold and overnight interest-bearing deposits	19,788	7,893
Investment in available-for-sale securities, at fair value	221,824	235,054
Mortgage servicing rights	2,370	2,847
Accrued interest receivable	4,624	4,853
Deposits:
Non-interest bearing demand	229,987	208,035
Savings, interest checking and money market	477,945	441,080
Accrued interest payable	408	382
Carrying Amount
Assets:
Cash and due from banks	19,106	20,484
Federal funds sold and overnight interest-bearing deposits	19,788	7,893
Investment in available-for-sale securities, at fair value	221,824	235,054
Loans, net	938,301	856,476
Investment in FHLB stock	4,593	3,390
Mortgage servicing rights	2,370	2,847
Cash surrender value - life insurance	2,396	2,348
Accrued interest receivable	4,624	4,853
Assets, Total	1,213,002	1,133,345
Deposits:
Non-interest bearing demand	229,987	208,035
Savings, interest checking and money market	477,945	441,080
Time deposits	310,099	298,082
Federal funds purchased and securities sold under agreements to repurchase	28,504	56,834
Subordinated notes	49,486	49,486
Federal Home Loan Bank advances	79,000	50,000
Accrued interest payable	408	382
Liabilities, Total	1,175,429	1,103,899
Fair Value
Assets:
Cash and due from banks	19,106	20,484
Federal funds sold and overnight interest-bearing deposits	19,788	7,893
Investment in available-for-sale securities, at fair value	221,824	235,054
Loans, net	939,573	854,775
Investment in FHLB stock	4,593	3,390
Mortgage servicing rights	2,370	2,847
Cash surrender value - life insurance	2,396	2,348
Accrued interest receivable	4,624	4,853
Assets, Total	1,214,274	1,131,644
Deposits:
Non-interest bearing demand	229,987	208,035
Savings, interest checking and money market	477,945	441,080
Time deposits	309,188	298,323
Federal funds purchased and securities sold under agreements to repurchase	28,504	56,834
Subordinated notes	31,970	40,821
Federal Home Loan Bank advances	79,510	52,340
Accrued interest payable	408	382
Liabilities, Total	1,157,512	1,097,815
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Cash and due from banks	19,106	20,484
Federal funds sold and overnight interest-bearing deposits	19,788	7,893
Investment in available-for-sale securities, at fair value	0	0
Loans, net	0	0
Investment in FHLB stock	0	0
Mortgage servicing rights	0	0
Cash surrender value - life insurance	0	0
Accrued interest receivable	4,624	4,853
Assets, Total	43,518	33,230
Deposits:
Non-interest bearing demand	229,987	208,035
Savings, interest checking and money market	477,945	441,080
Time deposits	0	0
Federal funds purchased and securities sold under agreements to repurchase	28,504	56,834
Subordinated notes	0	0
Federal Home Loan Bank advances	0	0
Accrued interest payable	408	382
Liabilities, Total	736,844	706,331
Other Observable Inputs (Level 2)
Assets:
Cash and due from banks	0	0
Federal funds sold and overnight interest-bearing deposits	0	0
Investment in available-for-sale securities, at fair value	221,824	235,054
Loans, net	0	0
Investment in FHLB stock	4,593	3,390
Mortgage servicing rights	0	0
Cash surrender value - life insurance	2,396	2,348
Accrued interest receivable	0	0
Assets, Total	228,813	240,792
Deposits:
Non-interest bearing demand	0	0
Savings, interest checking and money market	0	0
Time deposits	0	0
Federal funds purchased and securities sold under agreements to repurchase	0	0
Subordinated notes	31,970	40,821
Federal Home Loan Bank advances	79,510	52,340
Accrued interest payable	0	0
Liabilities, Total	111,480	93,161
Net Significant Unobservable Inputs (Level 3)
Assets:
Cash and due from banks	0	0
Federal funds sold and overnight interest-bearing deposits	0	0
Investment in available-for-sale securities, at fair value	0	0
Loans, net	939,573	854,775
Investment in FHLB stock	0	0
Mortgage servicing rights	2,370	2,847
Cash surrender value - life insurance	0	0
Accrued interest receivable	0	0
Assets, Total	941,943	857,622
Deposits:
Non-interest bearing demand	0	0
Savings, interest checking and money market	0	0
Time deposits	309,188	298,323
Federal funds purchased and securities sold under agreements to repurchase	0	0
Subordinated notes	0	0
Federal Home Loan Bank advances	0	0
Accrued interest payable	0	0
Liabilities, Total	$ 309,188	$ 298,323