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

Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Loans and Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio (Details)

Note 3 - Loans and Allowance for Credit Losses - Credit Risk Profile of Loan Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Loan, current	$ 10,560		$ 10,560
Loan, one year before	19,641		19,641
Loan, two years before	20,197		20,197
Loan, prior	55,002		55,002
Loan, revolving	1,441		1,441
Loan, revolving converted to term loans	0		0
Loans	106,841		106,841		$ 102,991
Current year-to-date gross write-offs, current			0
Current year-to-date gross write-offs, one year before			0
Current year-to-date gross write-offs, two years before			0
Current year-to-date gross write-offs, prior			0
Current year-to-date gross write-offs, revolving			0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0
Charge-offs	0	$ 0	0	$ 0
Pass [Member]
Loans					102,760
Special Mention [Member]
Loans					43
Substandard [Member]
Loans					188
Doubtful [Member]
Loans					0
First Mortgage Loans [Member]
Loans	106,576		106,576		102,742
First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loan, current	8,623		8,623
Loan, one year before	19,539		19,539
Loan, two years before	19,824		19,824
Loan, prior	48,657		48,657
Loan, revolving	1,291		1,291
Loan, revolving converted to term loans	0		0
Loans	97,934		97,934		95,584
Current year-to-date gross write-offs, current			0
Current year-to-date gross write-offs, one year before			0
Current year-to-date gross write-offs, two years before			0
Current year-to-date gross write-offs, prior			0
Current year-to-date gross write-offs, revolving			0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Pass [Member]
Loan, current	8,623		8,623
Loan, one year before	19,539		19,539
Loan, two years before	19,824		19,824
Loan, prior	48,518		48,518
Loan, revolving	1,291		1,291
Loan, revolving converted to term loans	0		0
Loans	97,795		97,795		95,353
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Special Mention [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		43
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Substandard [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	139		139
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	139		139		188
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Doubtful [Member]
Loans					0
First Mortgage Loans [Member] \| Multifamily [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	241		241
Loan, prior	2,901		2,901
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	3,142		3,142		3,237
Current year-to-date gross write-offs, current			0
Current year-to-date gross write-offs, one year before			0
Current year-to-date gross write-offs, two years before			0
Current year-to-date gross write-offs, prior			0
Current year-to-date gross write-offs, revolving			0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Multifamily [Member] \| Pass [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	241		241
Loan, prior	2,901		2,901
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	3,142		3,142		3,237
First Mortgage Loans [Member] \| Multifamily [Member] \| Special Mention [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		0
First Mortgage Loans [Member] \| Multifamily [Member] \| Substandard [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		0
First Mortgage Loans [Member] \| Multifamily [Member] \| Doubtful [Member]
Loans					0
First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loan, current	46		46
Loan, one year before	0		0
Loan, two years before	101		101
Loan, prior	3,441		3,441
Loan, revolving	150		150
Loan, revolving converted to term loans	0		0
Loans	3,738		3,738		3,921
Current year-to-date gross write-offs, current			0
Current year-to-date gross write-offs, one year before			0
Current year-to-date gross write-offs, two years before			0
Current year-to-date gross write-offs, prior			0
Current year-to-date gross write-offs, revolving			0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Pass [Member]
Loan, current	46		46
Loan, one year before	0		0
Loan, two years before	101		101
Loan, prior	3,441		3,441
Loan, revolving	150		150
Loan, revolving converted to term loans	0		0
Loans	3,738		3,738		3,921
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Special Mention [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		0
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Substandard [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		0
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Doubtful [Member]
Loans					0
First Mortgage Loans [Member] \| Construction Loans [Member]
Loan, current	1,762		1,762
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	1,762		1,762		0
Current year-to-date gross write-offs, current			0
Current year-to-date gross write-offs, one year before			0
Current year-to-date gross write-offs, two years before			0
Current year-to-date gross write-offs, prior			0
Current year-to-date gross write-offs, revolving			0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Construction Loans [Member] \| Pass [Member]
Loan, current	1,762		1,762
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	1,762		1,762
First Mortgage Loans [Member] \| Construction Loans [Member] \| Special Mention [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0
First Mortgage Loans [Member] \| Construction Loans [Member] \| Substandard [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0
Consumer Portfolio Segment [Member]
Loan, current	129		129
Loan, one year before	102		102
Loan, two years before	31		31
Loan, prior	3		3
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	265		265		249
Charge-offs	0	$ 0	0	$ 0
Consumer Portfolio Segment [Member] \| Pass [Member]
Loan, current	129		129
Loan, one year before	102		102
Loan, two years before	31		31
Loan, prior	3		3
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	265		265		249
Consumer Portfolio Segment [Member] \| Special Mention [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	0		0		0
Consumer Portfolio Segment [Member] \| Substandard [Member]
Loan, current	0		0
Loan, one year before	0		0
Loan, two years before	0		0
Loan, prior	0		0
Loan, revolving	0		0
Loan, revolving converted to term loans	0		0
Loans	$ 0		$ 0		0
Consumer Portfolio Segment [Member] \| Doubtful [Member]
Loans					$ 0