Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income
Loans, including fees	$ 42,153,000	$ 37,342,000	$ 31,866,000
Taxable securities	6,269,000	4,880,000	4,399,000
Tax exempt securities	326,000	383,000	571,000
Federal funds sold and other	836,000	856,000	686,000
	49,584,000	43,461,000	37,522,000
Interest expense
Deposits	11,657,000	7,549,000	5,190,000
Federal Home Loan Bank advances	810,000	867,000	120,000
Senior debt	329,000	389,000	194,000
Junior subordinated debentures	1,005,000	946,000	753,000
Subordinated capital note	433,000	39,000	148,000
	14,234,000	9,790,000	6,405,000
Net interest income	35,350,000	33,671,000	31,117,000
Negative provision for loan losses		(500,000)	(800,000)
Net interest income after negative provision for loan losses	35,350,000	34,171,000	31,917,000
Non-interest income
Non-interest income revenue	501,000	660,000	666,000
Income from bank owned life insurance	410,000	437,000	412,000
Net gain (loss) on sales and calls of investment securities	(5,000)	(6,000)	288,000
Other	694,000	1,162,000	930,000
	5,918,000	5,779,000	5,404,000
Non-interest expense
Salaries and employee benefits	16,233,000	15,489,000	15,090,000
Occupancy and equipment	3,522,000	3,586,000	3,420,000
Professional fees	769,000	814,000	978,000
Marketing expense	908,000	1,114,000	1,098,000
FDIC insurance	211,000	557,000	1,412,000
Data processing expense	1,259,000	1,192,000	1,256,000
State franchise and deposit tax	1,210,000	1,118,000	956,000
Deposit account related expense	1,224,000	823,000	896,000
Other real estate owned expense	368,000	868,000	1,973,000
Litigation and loan collection expense	189,000	245,000	179,000
Communications expense	772,000	701,000	722,000
Insurance expense	444,000	478,000	540,000
Postage and delivery	544,000	364,000	395,000
Acquisition costs	775,000
Other	1,842,000	1,777,000	1,852,000
	30,270,000	29,126,000	30,767,000
Income before income taxes	10,998,000	10,824,000	6,554,000
Income tax expense (benefit)	480,000	2,030,000	(31,899,000)
Net income	$ 10,518,000	$ 8,794,000	$ 38,453,000
Basic and diluted income per common share (in dollars per share)	$ 1.41	$ 1.23	$ 6.15
Deposit Account [Member]
Non-interest income
Non-interest income revenue	$ 2,381,000	$ 2,355,000	$ 2,253,000
Debit Card [Member]
Non-interest income
Non-interest income revenue	$ 2,438,000	$ 1,831,000	$ 1,521,000