Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,609	$ 3,613
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	250	250
Depreciation and amortization	512	498
Amortization of investment security premiums and accretion of discounts, net	402	686
Stock option expense	46	46
Net gains on sales of investment securities	0	(76)
Equity in losses of real estate limited partnerships, net	270	410
Changes in assets and liabilities:
Net change in interest receivable	(912)	(410)
Net change in other assets	707	(1,251)
Net change in interest payable	(3)	13
Net change in other liabilities	(2,111)	(10,670)
Net cash provided by (used in) operating activities	2,770	(6,891)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of investment securities available for sale	0	14,630
Proceeds from maturities of investment securities available for sale	39,112	51,706
Proceeds from maturities of investment securities held to maturity	41	42
Proceeds from redemption of Federal Home Loan Bank stock	649	486
Purchases of investment securities available for sale	(40,804)	(62,336)
Loan originations in excess of principal payments	(18,764)	(13,353)
Proceeds from sale of premises and equipment	1	0
Proceeds from sales of other real estate owned	0	8
Real estate limited partnership investments	(46)	(1,185)
Purchases of bank premises and equipment	(879)	(476)
Net cash used in investing activities	(20,690)	(10,478)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net (decrease) increase in deposits	(1,303)	22,781
Net increase in short-term borrowings	30,900	36,600
Net increase in securities sold under agreement to repurchase, short-term	(44,316)	(34,118)
Principal payments on long-term debt	(20)	(20)
Cash dividends paid	(1,606)	(1,574)
Sale of treasury stock	7	3
Increase in deferred compensation arrangements	53	49
Net cash (used in) provided by financing activities	(16,285)	23,721
(Decrease) increase in cash and cash equivalents	(34,205)	6,352
Cash and cash equivalents beginning of period	77,228	37,812
Cash and cash equivalents end of period	43,023	44,164
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Total interest payments	1,302	1,998
Total income tax payments	0	2,500
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Distribution of stock under deferred compensation arrangements	446	432
Distribution of treasury stock in lieu of cash dividend	154	171
Decrease in payable for investments purchased	$ 0	$ (9,461)