CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 19,815,000	$ 11,670,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,296,000	2,943,000
Accretion of fair value purchase accounting adjustments, net	(4,337,000)	(5,426,000)
Provision for loan losses	1,914,000	1,607,000
Stock compensation expense	432,000	327,000
(Gain) loss from redemption and sale on securities available-for-sale	(34,000)	1,000
Deferred income tax expense	1,178,000	1,097,000
Increase in cash surrender value of bank owned life insurance	(415,000)	(441,000)
Loss on disposal of fixed assets	14,000	41,000
Net (gains) losses from sale of other real estate owned	(43,000)	434,000
Net gains from sale of loans	(1,192,000)	(1,181,000)
Origination of loans held for sale	(49,333,000)	(42,313,000)
Proceeds from sales of loans held for sale	49,435,000	45,750,000
Net change in:
Accrued interest receivable	(207,000)	(678,000)
Accrued interest payable	900,000	228,000
Other assets	(330,000)	3,039,000
Other liabilities	5,029,000	2,008,000
Net cash provided by operating activities	26,122,000	19,106,000
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	16,515,000	24,563,000
Proceeds from maturities and calls of securities available-for-sale	15,555,000	2,525,000
Proceeds from paydowns of securities available-for-sale	10,166,000	14,457,000
Purchases of securities available-for-sale	(6,074,000)	(41,804,000)
Purchases of other investments	(1,414,000)	(3,840,000)
Net cash and cash equivalents received in business combination	0	5,653,000
Net increase in loans	(85,424,000)	(82,165,000)
Purchases of premises and equipment	(4,506,000)	(1,885,000)
Proceeds from sale of other real estate owned	1,395,000	3,446,000
Net cash used in investing activities	(53,787,000)	(79,050,000)
Cash flows from financing activities:
Net increase in deposits	75,634,000	65,879,000
Net decrease in securities sold under agreements to repurchase	(7,388,000)	(7,268,000)
Issuance of common stock	314,000	1,528,000
Net proceeds from subordinated debt	0	39,158,000
Proceeds from Federal Home Loan Bank advances and other borrowings	145,176,000	160,700,000
Repayment of Federal Home Loan Bank advances and other borrowings	(130,959,000)	(182,976,000)
Net cash provided by financing activities	82,777,000	77,021,000
Net change in cash and cash equivalents	55,112,000	17,077,000
Cash and cash equivalents, beginning of period	115,822,000	113,027,000
Cash and cash equivalents, end of period	170,934,000	130,104,000
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	17,751,000	10,003,000
Cash paid during the period for income taxes	3,635,000	726,000
Noncash investing and financing activities:
Change in unrealized (gains) losses on securities available-for-sale	(3,263,000)	3,255,000
Acquisition of real estate through foreclosure	417,000	3,151,000
Financed sales of other real estate owned	0	257,000
Change in goodwill due to acquisition	(473,000)	15,791,000
Initial recognition of operating lease right-of-use assets	2,344,000	0
Initial recognition of operating lease liabilities	$ 2,344,000	$ 0