Fair Value Measurement - Schedule of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets [Abstract]
Securities available for sale	$ 71,739	$ 71,884
Level 1 [Member]
Assets [Abstract]
Cash and short-term investments	54,490	67,110
Securities available for sale	0	0
Restricted investments	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Mutual funds	397	382
Interest rate swaps		0
Bank-owned life insurance	0	0
Total assets at fair value	54,887	67,492
Liabilities [Abstract]
Deposits	0	0
FHLB advances	0	0
Junior subordinated debt	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Total liabilities at fair value	0	0
Level 2 [Member]
Assets [Abstract]
Cash and short-term investments	0	0
Securities available for sale	71,739	71,884
Restricted investments	2,571	2,240
Loans, net	0	0
Accrued interest receivable	2,013	1,942
Mutual funds	0	0
Interest rate swaps		367
Bank-owned life insurance	13,778	13,595
Total assets at fair value	90,101	90,028
Liabilities [Abstract]
Deposits	607,456	634,917
FHLB advances	30,030	23,633
Junior subordinated debt	4,632	4,414
Accrued interest payable	504	300
Interest rate swaps	107	38
Total liabilities at fair value	642,729	663,302
Level 3 [Member]
Assets [Abstract]
Cash and short-term investments	0	0
Securities available for sale	0	0
Restricted investments	0	0
Loans, net	535,881	537,072
Accrued interest receivable	0	0
Mutual funds	0	0
Interest rate swaps		0
Bank-owned life insurance	0	0
Total assets at fair value	535,881	537,072
Liabilities [Abstract]
Deposits	0	0
FHLB advances	0	0
Junior subordinated debt	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Total liabilities at fair value	0	0
Carrying Amount [Member]
Assets [Abstract]
Cash and short-term investments	54,490	67,110
Securities available for sale	71,739	71,884
Restricted investments	2,571	2,240
Loans, net	538,593	544,188
Accrued interest receivable	2,013	1,942
Mutual funds	397	382
Interest rate swaps		367
Bank-owned life insurance	13,778	13,595
Total assets at fair value	683,581	701,708
Liabilities [Abstract]
Deposits	607,256	635,638
FHLB advances	29,738	23,780
Junior subordinated debt	4,124	4,124
Accrued interest payable	504	300
Interest rate swaps	107	38
Total liabilities at fair value	641,729	663,880
Fair Value [Member]
Assets [Abstract]
Cash and short-term investments	54,490	67,110
Securities available for sale	71,739	71,884
Restricted investments	2,571	2,240
Loans, net	535,881	537,072
Accrued interest receivable	2,013	1,942
Mutual funds	397	382
Interest rate swaps		367
Bank-owned life insurance	13,778	13,595
Total assets at fair value	680,869	694,592
Liabilities [Abstract]
Deposits	607,456	634,917
FHLB advances	30,030	23,633
Junior subordinated debt	4,632	4,414
Accrued interest payable	504	300
Interest rate swaps	107	38
Total liabilities at fair value	$ 642,729	$ 663,302