Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest and dividend income:
Loans/leases, including fees	$ 34,213,732	$ 27,211,417
Securities:
Taxable	1,555,884	1,142,235
Nontaxable	3,289,002	2,647,722
Interest-bearing deposits at financial institutions	197,003	198,652
Restricted investment securities	234,344	130,430
Federal funds sold	56,331	14,643
Total interest and dividend income	39,546,296	31,345,099
Interest expense:
Deposits	4,881,149	2,232,756
Short-term borrowings	32,913	23,960
Federal Home Loan Bank advances	1,064,113	403,469
Other borrowings	718,176	683,208
Junior subordinated debentures	447,027	332,823
Total interest expense	7,143,378	3,676,216
Net interest income	32,402,918	27,668,883
Provision for loan/lease losses	2,539,839	2,105,109
Net interest income after provision for loan/lease losses	29,863,079	25,563,774
Noninterest income:
Gains on sales of residential real estate loans, net	100,815	96,323
Gains on sales of government guaranteed portions of loans, net	358,434	950,641
Swap fee income	958,694	113,520
Earnings on bank-owned life insurance	417,987	469,687
Other	953,706	687,397
Total noninterest income	8,541,449	7,283,754
Noninterest expense:
Salaries and employee benefits	15,977,975	13,307,331
Occupancy and equipment expense	3,065,811	2,502,219
Professional and data processing fees	2,707,716	2,083,392
Acquisition costs	92,539	5,630
FDIC insurance, other insurance and regulatory fees	756,211	621,242
Loan/lease expense	290,747	293,538
Net cost of operations of other real estate	131,742	14,230
Advertising and marketing	693,239	609,431
Bank service charges	440,571	423,901
Correspondent banking expense	204,754	198,351
CDI amortization	304,551	230,867
Other	1,197,641	982,985
Total noninterest expense	25,863,497	21,273,117
Net income before income taxes	12,541,031	11,574,411
Federal and state income tax expense	1,991,070	2,389,446
Net income	$ 10,549,961	$ 9,184,965
Basic earnings per common share (in dollars per share)	$ 0.76	$ 0.70
Diluted earnings per common share (in dollars per share)	$ 0.74	$ 0.68
Weighted average common shares outstanding (in shares)	13,888,661	13,133,382
Weighted average common and common equivalent shares outstanding (in shares)	14,205,584	13,488,417
Cash dividends declared per common share (in dollars per share)	$ 0.06	$ 0.05
Fiduciary and Trust [Member]
Noninterest income:
Noninterest income	$ 2,237,081	$ 1,740,207
Investment Advisory, Management and Administrative Service [Member]
Noninterest income:
Noninterest income	952,344	961,599
Deposit Account [Member]
Noninterest income:
Noninterest income	1,531,453	1,316,390
Debit Card [Member]
Noninterest income:
Noninterest income	766,108	702,801
Correspondent Clearing [Member]
Noninterest income:
Noninterest income	$ 264,827	$ 245,189