Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 11,277	$ 11,602
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,021	948
Deferred taxes	122	515
Stock-based compensation	147	123
Excess tax benefits of stock-based compensation	0	93
Provision for loan losses	1,229	1,765
Write-downs of other real estate owned and other repossessed assets	538	134
Gains on sale of mortgage loans held for sale	(256)	(316)
Securities (gains) losses	8	(68)
(Gains)/losses on sale of assets, net	11	(27)
Proceeds from sale of mortgage loans held for sale	11,133	13,793
Funding of mortgage loans held for sale	(12,232)	(15,012)
Amortization of securities premiums and discounts, net	800	563
Change in cash surrender value of bank owned life insurance	(354)	(385)
Mortgage servicing rights:
Fair value adjustments	42	421
New servicing assets created	(83)	(93)
Changes in:
Other assets	(2,045)	(2,464)
Other liabilities	3,197	(92)
Net cash provided by operating activities	14,555	11,500
Certificates of deposit in other banks:
Purchase of certificates of deposit	(8,820)	0
Maturity of certificates of deposit	235	2,236
Securities available-for-sale (AFS):
Purchase of AFS securities	(46,756)	(3,906)
Proceeds from the sales of AFS securities	0	3,509
Proceeds from prepayments and maturities of AFS securities	46,764	19,623
Securities held-to-maturity (HTM):
Proceeds from maturities of HTM securities	8	0
Change in loans, net	(33,746)	(17,034)
Purchase of premises and equipment	(487)	(881)
Proceeds from sale and retirement of premises and equipment	25	0
Proceeds from sale of other real estate and other repossessed assets	427	1,808
Net cash provided by (used in) investing activities	(42,350)	5,355
Cash flows from financing activities:
Change in deposits, net	78,470	53,436
Change in repurchase agreements, federal funds purchased, and other short-term borrowings, net	12,970	10,113
Payments on advances from Federal Home Loan Bank	(25)	(100,028)
Issuance of common stock	367	331
Repurchase of common stock	0	(382)
Excess tax benefits of stock-based compensation	0	(93)
Dividends paid	(5,662)	(5,454)
Net cash provided by (used in) financing activities	86,120	(42,077)
Net increase (decrease) in cash and cash equivalents	58,325	(25,222)
Cash and cash equivalents at beginning of period	144,716	187,611
Cash and cash equivalents at end of period	203,041	162,389
Supplemental disclosures:
Income taxes paid	150	1,419
Interest paid	3,340	2,883
Non-cash activities:
Loans to facilitate the sale of other real estate owned and repossessed assets	53	1,117
Common stock dividends accrued, paid in subsequent quarter	209	227
Real estate acquired in settlement of loans	$ 856	$ 1,291