NSTS Bancorp, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Loans and Allowance for Loan Losses - Summary of Loans by Major Category (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Loans	$ 103,509		$ 102,991
Net deferred loan costs	1,013		992
Allowance for credit losses on loans	(979)	$ (624)	(624)	$ (785)	$ (779)
Loans, net	103,543		103,359
First Mortgage Loans [Member]
Loans	103,222		102,742
Consumer Portfolio Segment [Member]
Loans	287		249
Allowance for credit losses on loans	(2)	(5)	(5)	(3)	(10)
One To Four Family Residential [Member] \| First Mortgage Loans [Member]
Loans	96,224		95,584
Allowance for credit losses on loans	(890)	(581)	(581)	(729)	(675)
Multifamily [Member] \| First Mortgage Loans [Member]
Loans	3,203		3,237
Allowance for credit losses on loans	(41)	(19)	(19)	(27)	(69)
Commercial Real Estate [Member] \| First Mortgage Loans [Member]
Loans	3,795		3,921
Allowance for credit losses on loans	$ (46)	$ (19)	$ (19)	$ (26)	$ (25)

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.