NSTS Bancorp, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 2 - Securities - Amortized Cost and Estimated Fair Value of Debt Securities (Details)

v3.26.1

Note 2 - Securities - Amortized Cost and Estimated Fair Value of Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
1 year or less	$ 5,066	$ 1,610
1 to 5 years	37,312	25,222
5 to 10 years	25,162
After 10 years	9,177	9,775
Fair value	76,717	78,719
Gross unrealized gains	0	5
Gross unrealized losses	(8,337)	(8,063)
Amortized cost	85,054	86,777
US Treasury Notes Securities [Member]
1 year or less	1,003	0
1 to 5 years	6,048	0
5 to 10 years	0
After 10 years	0	0
Fair value	7,051	7,085
Gross unrealized gains	0	4
Gross unrealized losses	(46)	(7)
Amortized cost	7,097	7,088
US Government Agencies Debt Securities [Member]
1 year or less	0	0
1 to 5 years	7,020	1,326
5 to 10 years	1,223
After 10 years	0	0
Fair value	8,243	8,534
Gross unrealized gains	0	0
Gross unrealized losses	(669)	(685)
Amortized cost	8,912	9,219
Municipal Bonds [Member]
1 year or less	199	198
1 to 5 years	1,202	3,642
5 to 10 years	4,579
After 10 years	5,956	7,104
Fair value	11,936	12,146
Gross unrealized gains	0	0
Gross unrealized losses	(2,026)	(1,829)
Amortized cost	13,962	13,975
Residential Mortgage-Backed Securities [Member]
1 year or less	0	0
1 to 5 years	8,489	14,336
5 to 10 years	13,109
After 10 years	1,191	573
Fair value	22,789	23,769
Gross unrealized gains	0	0
Gross unrealized losses	(3,031)	(2,990)
Amortized cost	25,820	26,759
Commercial Mortgage-Backed Securities [Member]
1 year or less	3,864	1,412
1 to 5 years	14,553	5,918
5 to 10 years	6,251
After 10 years	2,030	2,098
Fair value	26,698	27,185
Gross unrealized gains	0	1
Gross unrealized losses	(2,565)	(2,552)
Amortized cost	$ 29,263	$ 29,736

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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