CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) [Abstract]
NET INCOME	$ 16,098	$ 14,050
ADJUSTMENTS TO RECONCILE NET INCOME TO NET CASH PROVIDED BY OPERATING ACTIVITIES
(Credit) provision for loan losses	(100)	600
Depreciation and amortization	1,788	1,740
Stock-based compensation - net	763	626
Net amortization of premiums	874	863
Originations of mortgage loans held for sale	(34,482)	(31,613)
Proceeds from sale of mortgage loans originated for sale	34,892	32,517
Gain on sale of mortgage loans originated for sale	(247)	(290)
Gain on sale of portfolio loans	(457)	(568)
Decrease in other intangibles	103	76
Deferred tax expense	1,768	872
Decrease (increase) in accrued interest and loan fees receivable	19	(673)
(Increase) decrease in other assets	(899)	1,377
Adjustment to unfunded pension liability	(12)	(334)
Decrease in other liabilities	(3,026)	(1,598)
Income from bank-owned life insurance	(1,035)	(918)
Net gain on sale and calls of securities available for sale	(547)	(319)
Net cash provided by operating activities	15,500	16,408
CASH FLOWS FROM INVESTING ACTIVITIES
Principal payments on investment securities - available for sale	6,661	8,030
Proceeds from sale of investment securities - available for sale	6,615	10,080
Maturities and calls of investment securities - available for sale	54,290	26,505
Purchases of investment securities - available for sale	(13,188)	(6,800)
Maturities and calls of investment securities - held to maturity	44,521	1,957
Purchases of investment securities - held to maturity	0	(6,000)
Decrease in interest-bearing time deposits in other banks	0	10,000
Decrease in Federal Reserve and Federal Home Loan Bank stock and other investments	6,228	3,019
Proceeds from sale of portfolio loans	49,184	49,871
Loan originations - net	(93,837)	(227,745)
Purchases of premises and equipment - net	(3,837)	(1,243)
Net cash provided by (used in) investing activities	56,637	(132,326)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposit accounts	163,577	239,771
Net decrease in short-term borrowings	(150,000)	(95,000)
Net increase in long-term borrowings	0	15,000
Proceeds from stock options exercised	0	539
Cash dividends paid on common stock	(3,559)	(2,583)
Proceeds from shares issued under the dividend reinvestment plan	1,785	560
Decrease in capital lease payable	(97)	(85)
Net cash provided by financing activities	11,706	158,202
NET INCREASE IN CASH AND CASH EQUIVALENTS	83,843	42,284
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	98,086	55,516
CASH AND CASH EQUIVALENTS, END OF PERIOD	181,929	97,800
SUPPLEMENTAL DATA:
Interest paid	3,093	2,208
Income taxes paid	4,146	3,148
Loans transferred to held-for-sale	48,670	24,164
Loans transferred to OREO	$ 650	$ 0