CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,892,418	$ 7,576,059
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	808,258	753,192
Provision for loan losses	753,897	833,333
Depreciation and amortization of fixed assets	2,187,234	2,129,738
Amortization of premiums on securities, net	1,343,743	960,973
Gains on sales of loans held for sale, net	(270,265)	(132,902)
Proceeds from sales of loans held for sale	8,992,854	5,523,214
Loans originated and held for sale	(9,491,912)	(4,977,727)
Net losses (gains) on sale of other real estate owned	72,004	(87,733)
Net (gains) losses on trading assets	(28,261)	14,966
Net gains on securities transactions	(300,516)	(1,108,091)
Net impairment loss recognized on investment securities	0	67,400
Proceeds from sales of trading assets	96,498	0
Purchase of trading assets	(48,851)	(264,244)
Decrease in other assets	4,294,238	3,001,325
Decrease (increase) in prepaid FDIC assessment	559,406	(49,464)
Decrease in accrued interest payable	(337,246)	(265,000)
Expense related to restricted stock units for directors' deferred compensation plan	65,151	61,129
Expense related to employee stock compensation	80,000	55,000
Expense related to employee stock awards	61,062	21,226
Decrease in other liabilities	(820,424)	(2,243,010)
Income from bank owned life insurance	(64,840)	(65,932)
Net cash provided by operating activities	16,844,448	11,803,452
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales and calls of securities available for sale	70,370,086	67,741,210
Proceeds from maturities and principal collected on securities available for sale	21,396,640	23,608,123
Proceeds from maturities and principal collected on securities held to maturity	3,731,924	3,448,732
Purchases of securities available for sale	(64,276,418)	(95,911,022)
Purchases of securities held to maturity	(1,582,507)	(3,319,281)
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock	(26,250)	(1,002,500)
Redemption of Federal Home Loan Bank and Federal Reserve Bank stock	775,100	237,250
Purchases of premises and equipment	(2,287,654)	(1,307,723)
Cash paid Fort Orange Financial Corporation acquisition	0	(8,137,816)
Cash received Fort Orange Financial Corporation acquisition	0	33,284,995
Proceeds from sales of other real estate owned	294,229	356,207
Net increase in loans	(78,356,344)	(10,967,168)
Net cash (used) provided by investing activities	(49,961,194)	8,031,007
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in demand deposits, NOW accounts, savings accounts, and insured money market accounts	112,724,881	70,452,474
Net decrease in time deposits and individual retirement accounts	(28,042,200)	(15,073,756)
Net decrease in securities sold under agreements to repurchase	(4,189,186)	(13,889,730)
Repayments of Federal Home Loan Bank long term advances	(15,298,177)	(317,990)
Purchase of treasury stock	(579,051)	(327,413)
Sale of treasury stock	257,449	89,505
Cash dividends paid	(3,427,087)	(2,914,582)
Net cash provided by financing activities	61,446,629	38,018,508
Net increase in cash and cash equivalents	28,329,883	57,852,967
Cash and cash equivalents, beginning of period	52,901,853	60,619,777
Cash and cash equivalents, end of period	81,231,736	118,472,744
Cash paid during the year for:
Interest	4,501,350	5,126,397
Income Taxes	3,500	3,340,847
Supplemental disclosure of non-cash activity:
Transfer of loans to other real estate owned	$ 512,686	$ 308,976