Note 17 - Other Noninterest Income and Expense - Summary of Noninterest Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Total other noninterest expenses	$ 6,027	$ 5,634
Subscriptions [Member]
Total other noninterest expenses	752	607
Customer Bank Card Processing [Member]
Total other noninterest expenses	700	697
Item Processing [Member]
Total other noninterest expenses	669	310
Telephone and Data Communications [Member]
Total other noninterest expenses	572	567
Pennsylvania Shares and Use Taxes [Member]
Total other noninterest expenses	474	482
Correspondent Bank and Courier Fees [Member]
Total other noninterest expenses	402	411
Internet Banking and Bill Pay [Member]
Total other noninterest expenses	357	347
Credit Bureau and Other Loan Expense [Member]
Total other noninterest expenses	246	132
Marketing and Advising [Member]
Total other noninterest expenses	240	264
FHLB Prepayment Penalties [Member]
Total other noninterest expenses	238
Printing and Supplies [Member]
Total other noninterest expenses	219	278
Bad Checks and Other losses [Member]
Total other noninterest expenses	193	199
Regulatory Examinations [Member]
Total other noninterest expenses	186	204
Charitable Contributions [Member]
Total other noninterest expenses	185	240
Travel Entertainment and Conferences [Member]
Total other noninterest expenses	167	390
Postage and Freight [Member]
Total other noninterest expenses	148	169
Memberships and Dues [Member]
Total other noninterest expenses	99	112
Other Expenses [Member]
Total other noninterest expenses	$ 180	$ 225