Parent Company Only Financial Statements - Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 9,014	$ 7,105
Adjustments to reconcile net income to net cash from operating activities:
Amortization and accretion of premiums and discounts on investments, net	1,791	1,825
Gain (loss) on sale of securities available for sale	(836)	(50)
Net cash from operating activities	14,097	13,337
Cash flows from investing activities:
Proceeds from maturities, calls, and principal repayments of securities available for sale	30,157	25,447
Proceeds from sales of securities available for sale	16,545	56,683
Net cash from investing activities	(19,950)	(60,725)
Cash flows from financing activities:
Repurchase of common stock	(7,830)	(10,003)
Dividends paid	(1,414)	(335)
Net cash from financing activities	28,269	36,910
Net (decrease) increase in cash	22,416	(10,478)
CASH AND CASH EQUIVALENTS, beginning of period	26,323	36,801
CASH AND CASH EQUIVALENTS, end of period	48,739	26,323
NONCASH INVESTING ACTIVITIES
Unrealized gain (loss) on securities available for sale	4,069	(3,993)
Consolidated company
Cash flows from operating activities:
Net income	13,014	17,105
Adjustments to reconcile net income to net cash from operating activities:
Equity in undistributed earnings of subsidiary	(13,270)	(17,343)
Dividend received from subsidiary	4,000	10,000
Amortization and accretion of premiums and discounts on investments, net	81	89
Gain (loss) on sale of securities available for sale	0	59
Change in payable to subsidiary	81	39
Change in other assets	(227)	(48)
Change in other liabilities	(17)	2
Net cash from operating activities	3,662	9,903
Cash flows from investing activities:
Proceeds from maturities, calls, and principal repayments of securities available for sale	2,808	3,191
Proceeds from sales of securities available for sale	0	1,979
ESOP loan repayment	560	546
Net cash from investing activities	3,368	5,716
Cash flows from financing activities:
Repurchase of common stock	(8,135)	(10,317)
Dividends paid	(1,414)	(335)
Net cash from financing activities	(9,549)	(10,652)
Net (decrease) increase in cash	(2,519)	4,967
CASH AND CASH EQUIVALENTS, beginning of period	8,508	3,541
CASH AND CASH EQUIVALENTS, end of period	5,989	8,508
NONCASH INVESTING ACTIVITIES
Unrealized gain (loss) on securities available for sale	$ 384	$ (104)