Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 16,512	$ 15,461	$ 14,722
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,318	629	2,193
Depreciation, amortization and accretion, net	4,442	3,960	4,661
Stock-based compensation expense	378	376	339
Gains on investment securities, net	(452)	(715)	(2,293)
(Gain) Loss on sales of other real property owned, net	(21)	33	32
Loss on write down of fixed assets	221	90	36
Gains on sale of loans held for sale, net	(763)	(621)	(918)
Deferred income taxes	20	11	971
(Increase) decrease in accrued interest receivable	(763)	(214)	161
Increase (decrease) in accrued interest payable	(54)	8	(64)
Origination of loans held for sale	(56,091)	(45,430)	(65,172)
Proceeds from sale of loans held for sale	57,844	44,607	65,788
Decrease in other assets	169	306	3,805
Increase (decrease) in other liabilities	(762)	(724)	401
Net cash provided by operating activities	21,998	17,777	24,662
Cash flows from investing activities:
Proceeds from maturities of certificates of deposit investments	1,245	0	6,665
Purchases of certificates of deposit investments	(26,245)	0	0
Proceeds from sales of securities available-for-sale	19,380	75,618	69,665
Proceeds from maturities of securities held-to-maturity	103,481	57,133	134,300
Proceeds from maturities of securities available-for-sale	10,000	0	0
Purchases of securities available-for-sale	(257,693)	(63,540)	(204,766)
Purchases of securities held-to-maturity	(46,000)	0	0
Net increase in loans	(68,958)	(78,698)	(73,203)
Purchases of premises and equipment	(1,762)	(1,178)	(1,397)
Proceeds from sales of other real property owned	260	635	1,590
Cash received related to acquisition, net of cash and cash equivalents acquired	276,661	0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	10,369	(10,030)	(67,146)
Cash flows from financing activities:
Net increase (decrease) in deposits	6,844	(15,539)	13,551
Increase in repurchase agreements	3,176	2,682	5,703
Proceeds from FHLB advances	5,000	10,000	36,000
Repayment of FHLB advances	(5,000)	(10,000)	(21,000)
Proceeds from short-term debt	2,000	1,000	0
Repayment of short-term debt	(2,000)	(1,000)	0
Proceeds from issuance of common stock	28,222	25,123	1,303
Conversion of preferred stock	0	(24,635)	0
Purchase of treasury stock	(1,066)	(1,763)	(4,619)
Dividends paid on preferred stock	(2,002)	(4,339)	(4,050)
Dividends paid on common stock	(3,487)	(2,648)	(2,014)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	31,687	(21,119)	24,874
Increase (decrease) in cash and cash equivalents	64,054	(13,372)	(17,610)
Cash and cash equivalents at beginning of period	51,730	65,102
Cash and cash equivalents at end of period	115,784	51,730	65,102
Cash paid during the period for:
Interest	3,428	3,244	3,599
Income taxes	7,796	9,336	7,657
Supplemental disclosures of noncash investing and financing activities
Securities transferred from available-for-sale to held-to-maturity	0	53,594	0
Loans transferred to other real estate owned	458	344	1,046
Dividends reinvested in common stock	1,266	1,261	1,066
Net tax benefit related to option and deferred compensation plans	$ 85	$ 101	$ 117