CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss) Attributable to Parent	$ 53,844	$ 48,872	$ 46,583
Adjustments to reconcile net income to net cash provided by operating activities:
Net (accretion) amortization on securities	7,184	4,848	3,622
Provision for credit loss expense	10,528	4,700	5,768
Securities (gains) losses	(233)	(44)	(2)
Depreciation and amortization	6,092	4,826	4,164
Provision for deferred income taxes	(3,768)	(2,841)	(2,428)
Net change in accrued interest receivable	1,566	(903)	(1,057)
Contribution of shares to ESOP	1,471	1,251	1,087
Stock compensation expense	820	801	745
Gain on sale of mortgage loans	(6,626)	(2,573)	(1,829)
Loss (gain) on sales of other real estate	(761)	44	86
Origination of loans held for sale	(165,524)	(79,454)	(57,418)
Proceeds from loans held for sale	170,834	79,454	62,098
Other, net	1,998	(9,080)	(3,971)
NET CASH FROM OPERATING ACTIVITIES	77,425	49,901	57,448
CASH FLOWS FROM INVESTING ACTIVITIES:
Sales of securities available-for-sale	28,161	3,259	0
Calls, maturities and principal reductions on securities available-for-sale	260,631	181,763	143,157
Purchases of securities available-for-sale	(365,998)	(129,466)	(124,333)
Loans made to customers, net of payments	53,144	(47,169)	(52,905)
Net change in federal funds sold	7,199	(7,500)	0
Redemption of restricted stock	600	3,588	0
Purchase of restricted stock	(18)	(4,164)	(11)
Cash Acquired from Acquisition	0	(32,830)	0
Sale of other real estate	3,941	756	1,781
Additions to premises and equipment	(3,908)	(1,103)	(2,013)
NET CASH FROM INVESTING ACTIVITIES	(16,248)	(32,866)	(34,324)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in deposits	481,728	104,113	(21,926)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase	35,942	(55,147)	11,970
Dividends paid	(14,273)	(12,648)	(12,496)
Purchases of treasury stock	(9,220)	(315)	(391)
Proceeds from FHLBank Borrowings, Financing Activities	16,700	217,000	115,600
Payments of FHLBank Borrowings, Financing Activities	42,010	217,000	115,600
NET CASH FROM FINANCING ACTIVITIES	468,867	36,003	(22,843)
NET CHANGE IN CASH AND CASH EQUIVALENTS	530,044	53,038	281
SUPPLEMENTAL DISCLOSURES OF CASH FLOW AND NONCASH INFORMATION:
Interest Paid, Excluding Capitalized Interest, Operating Activities	14,845	16,339	9,408
Income Taxes	7,549	9,595	7,185
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 657,470	$ 127,426	$ 74,388