Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement Of Cash Flows [Abstract]
Net cash from operating activities	$ 22,522	$ 19,488
Cash flows used for investing activities:
Maturities and calls of securities, available-for-sale	37,688	22,417
Purchases of securities, available-for-sale	(48,178)	(84,121)
Sale of securities available for sale	16,829	12,063
Redemption of other securities	741
Purchase of bank owned life insurance	(955)
Net loan originations	(86,351)	(52,807)
Proceeds from sale of other real estate owned properties		34
Proceeds from sale of premises and equipment		238
Acquisition, net of cash acquired		143,797
Premises and equipment purchases	(1,729)	(524)
Net cash (used for) provided by investing activities	(81,955)	41,097
Cash flows from financing activities:
Repayment of long-term FHLB advances		(10,000)
Proceeds from long-term FHLB advances	50,000
Net change in short-term FHLB advances	(7,500)	83,200
Increase (decrease) in deposits	52,728	(103,112)
Decrease in securities sold under repurchase agreements	(7,111)	(3,240)
Purchase of treasury shares	(3,909)
Common dividends paid	(4,845)	(2,404)
Preferred dividends paid	(490)	(794)
Net cash provided by (used for) financing activities	78,873	(36,350)
Increase in cash and due from financial institutions	19,440	24,235
Cash and due from financial institutions at beginning of period	42,779	40,519
Cash and due from financial institutions at end of period	62,219	64,754
Cash paid during the period for:
Interest	9,614	4,835
Income taxes	3,700	1,600
Supplemental cash flow information:
Transfer of premises to held-for-sale	76
Transfer of loans held for sale to portfolio		85
Conversion of preferred shares to common shares	206	6,480
Securities purchased not settled		12,707
Increase in right-of-use asset on leases	(2,367)
Increase in lease liability	$ 2,367
Acquisition of UCB
Consideration paid		117,344
Noncash assets acquired:
Securities available for sale		43,214
Equity securities		212
Loans held for sale		492
Loans receivable		298,319
FHLB Stock		3,527
Accrued interest receivable		950
Premises and equipment, net		5,291
Goodwill		49,221
Core deposit intangible		7,518
Bank owned life insurance		17,193
Other assets		10,896
Total non cash assets acquired		436,833
Liabilities assumed:
Deposits		475,944
Other liabilities		17
Total liabilities assumed		475,961
Net noncash assets acquired		(39,128)
Cash acquired		$ 156,472