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 Loan Losses - Credit Risk Profile of Loan Portfolio (Details)

Note 3 - Loans and Allowance for Loan Losses - Credit Risk Profile of Loan Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Loan, current	$ 20,925		$ 20,925		$ 26,211
Loan, one year before	22,954		22,954		19,045
Loan, two years before	17,639		17,639		19,972
Loan, three years before	18,644		18,644		53,991
Loan, prior	50,204		50,204		1,564
Loan, revolving	4,032		4,032		0
Loan, revolving converted to term loans	0		0		120,783
Loans	134,398		134,398		120,783
Current year-to-date gross write-offs, current			0		0
Current year-to-date gross write-offs, one year before			0		0
Current year-to-date gross write-offs, two years before			0		0
Loan, three years before, writeoff			0		0
Loan, prior, write-offs			0		0
Loan, revolving, writeoff			0		0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0		0
Charge-offs	0	$ 0	0	$ 0
First Mortgage Loans [Member]
Loans	134,123		134,123		120,535
First Mortgage Loans [Member] \| One To Four Family Residential [Member]
Loan, current	19,220		19,220		23,395
Loan, one year before	22,310		22,310		18,950
Loan, two years before	17,575		17,575		19,605
Loan, three years before	18,295		18,295		47,717
Loan, prior	44,242		44,242		1,414
Loan, revolving	3,410		3,410		0
Loan, revolving converted to term loans	0		0		111,081
Loans	125,052		125,052		111,081
Current year-to-date gross write-offs, current			0		0
Current year-to-date gross write-offs, one year before			0		0
Current year-to-date gross write-offs, two years before			0		0
Loan, three years before, writeoff			0		0
Loan, prior, write-offs			0		0
Loan, revolving, writeoff			0		0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0		0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Pass [Member]
Loan, current	19,220		19,220		23,395
Loan, one year before	22,310		22,310		18,950
Loan, two years before	17,575		17,575		19,605
Loan, three years before	18,295		18,295		47,517
Loan, prior	44,242		44,242		1,414
Loan, revolving	3,410		3,410		0
Loan, revolving converted to term loans	0		0		110,881
Loans	125,052		125,052
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Special Mention [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| One To Four Family Residential [Member] \| Substandard [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		200
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		200
Loans	0		0
First Mortgage Loans [Member] \| Multifamily [Member]
Loan, current	517		517		0
Loan, one year before	0		0		0
Loan, two years before	0		0		239
Loan, three years before	232		232		2,872
Loan, prior	2,790		2,790		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		3,111
Loans	3,539		3,539		3,111
Current year-to-date gross write-offs, current			0		0
Current year-to-date gross write-offs, one year before			0		0
Current year-to-date gross write-offs, two years before			0		0
Loan, three years before, writeoff			0		0
Loan, prior, write-offs			0		0
Loan, revolving, writeoff			0		0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0		0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Multifamily [Member] \| Pass [Member]
Loan, current	517		517		0
Loan, one year before	0		0		0
Loan, two years before	0		0		239
Loan, three years before	232		232		2,872
Loan, prior	2,790		2,790		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		3,111
Loans	3,539		3,539
First Mortgage Loans [Member] \| Multifamily [Member] \| Special Mention [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| Multifamily [Member] \| Substandard [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| Commercial Real Estate [Member]
Loan, current	83		83		186
Loan, one year before	179		179		0
Loan, two years before	0		0		100
Loan, three years before	97		97		3,399
Loan, prior	3,171		3,171		150
Loan, revolving	622		622		0
Loan, revolving converted to term loans	0		0		3,835
Loans	4,152		4,152		3,835
Current year-to-date gross write-offs, current			0		0
Current year-to-date gross write-offs, one year before			0		0
Current year-to-date gross write-offs, two years before			0		0
Loan, three years before, writeoff			0		0
Loan, prior, write-offs			0		0
Loan, revolving, writeoff			0		0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0		0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Pass [Member]
Loan, current	83		83		186
Loan, one year before	179		179		0
Loan, two years before	0		0		100
Loan, three years before	97		97		3,399
Loan, prior	3,171		3,171		150
Loan, revolving	622		622		0
Loan, revolving converted to term loans	0		0		3,835
Loans	4,152		4,152
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Special Mention [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| Commercial Real Estate [Member] \| Substandard [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| Construction Loans [Member]
Loan, current	999		999		2,508
Loan, one year before	381		381		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		2,508
Loans	1,380		1,380		2,508
Current year-to-date gross write-offs, current			0		0
Current year-to-date gross write-offs, one year before			0		0
Current year-to-date gross write-offs, two years before			0		0
Loan, three years before, writeoff			0		0
Loan, prior, write-offs			0		0
Loan, revolving, writeoff			0		0
Current year-to-date gross write-offs,Revolving, Converted to Term Loan			0		0
Charge-offs	0	0	0	0
First Mortgage Loans [Member] \| Construction Loans [Member] \| Pass [Member]
Loan, current	999		999		2,508
Loan, one year before	381		381		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		2,508
Loans	1,380		1,380
First Mortgage Loans [Member] \| Construction Loans [Member] \| Special Mention [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
First Mortgage Loans [Member] \| Construction Loans [Member] \| Substandard [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
Consumer Portfolio Segment [Member]
Loan, current	106		106		122
Loan, one year before	84		84		95
Loan, two years before	64		64		28
Loan, three years before	20		20		3
Loan, prior	1		1		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		248
Loans	275		275		248
Charge-offs	0	$ 0	0	$ 0
Consumer Portfolio Segment [Member] \| Pass [Member]
Loan, current	106		106		122
Loan, one year before	84		84		95
Loan, two years before	64		64		28
Loan, three years before	20		20		3
Loan, prior	1		1		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		248
Loans	275		275
Consumer Portfolio Segment [Member] \| Special Mention [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		0
Loans	0		0
Consumer Portfolio Segment [Member] \| Substandard [Member]
Loan, current	0		0		0
Loan, one year before	0		0		0
Loan, two years before	0		0		0
Loan, three years before	0		0		0
Loan, prior	0		0		0
Loan, revolving	0		0		0
Loan, revolving converted to term loans	0		0		$ 0
Loans	$ 0		$ 0