Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest and dividend income:
Interest and fees on loans		$ 41,665	$ 41,432	$ 83,728	$ 82,685
Interest and dividends on securities available for sale:
U. S. government sponsored enterprises		106	821	527	1,604
State and political subdivisions		2	3	3	4
Mortgage-backed securities and collateralized mortgage obligations		1,527	2,152	3,640	3,707
Corporate bonds		488	272	726	480
Small Business Administration-guaranteed participation securities		229	289	474	586
Other securities		5	5	11	10
Total interest and dividends on securities available for sale		2,357	3,542	5,381	6,391
Interest on held to maturity securities:
Mortgage-backed securities and collateralized mortgage obligations-residential		162	209	337	426
Total interest on held to maturity securities		162	209	337	426
Federal Reserve Bank and Federal Home Loan Bank stock		192	199	274	284
Interest on federal funds sold and other short-term investments		193	3,282	1,460	6,291
Total interest income		44,569	48,664	91,180	96,077
Interest on deposits:
Interest-bearing checking		26	94	42	215
Savings accounts		166	367	399	744
Money market deposit accounts		862	1,119	1,958	1,945
Time deposits		5,599	7,512	11,990	13,488
Interest on short-term borrowings		235	381	557	762
Total interest expense		6,888	9,473	14,946	17,154
Net interest income		37,681	39,191	76,234	78,923
Provision (credit) for loan losses		2,000	(341)	4,000	(41)
Net interest income after provision for loan losses		35,681	39,532	72,234	78,964
Noninterest income:
Trustco financial services income		1,368	1,683	2,968	3,416
Fees for services to customers		1,807	2,611	4,122	5,131
Net gain on securities transactions	[1]	0	0	1,155	0
Other		251	620	515	1,004
Total noninterest income		3,426	4,914	8,760	9,551
Noninterest expenses:
Salaries and employee benefits		11,648	11,711	23,021	23,162
Net occupancy expense		4,385	4,006	8,691	8,173
Equipment expense		1,606	1,709	3,408	3,611
Professional services		1,182	1,568	2,663	3,218
Outsourced services		1,875	1,875	3,950	3,800
Advertising expense		601	778	1,089	1,563
FDIC and other insurance		609	598	903	1,246
Other real estate (income) expense, net		(32)	210	162	186
Other		2,058	2,447	4,313	4,810
Total noninterest expenses		23,932	24,902	48,200	49,769
Income before taxes		15,175	19,544	32,794	38,746
Income taxes		3,921	4,877	8,227	9,521
Net income		$ 11,254	$ 14,667	$ 24,567	$ 29,225
Net income per share:
Basic (in dollars per share)		$ 0.117	$ 0.152	$ 0.254	$ 0.302
Diluted (in dollars per share)		$ 0.117	$ 0.151	$ 0.254	$ 0.302

[1] Not within the scope of ASC 606.