LOANS RECEIVABLE - Current, Past Due and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total loans	$ 165,882	$ 144,920
Past due
Financing Receivable, Past Due [Line Items]
Total loans	3,446	3,752
Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	2,707	2,575
Past Due Over 90 Days and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	15	24
Past Due Over 30 Days Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans	724	1,153
Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	161,737	140,354
Current and Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans	699	814
One- to four-family residential
Financing Receivable, Past Due [Line Items]
Total loans	81,433	83,623
One- to four-family residential | Past due
Financing Receivable, Past Due [Line Items]
Total loans	3,148	3,518
One- to four-family residential | Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	2,409	2,391
One- to four-family residential | Past Due Over 90 Days and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	15	24
One- to four-family residential | Past Due Over 30 Days Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans	724	1,103
One- to four-family residential | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	77,611	79,333
One- to four-family residential | Current and Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans	674	772
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	22,704	21,478
Commercial real estate | Past due
Financing Receivable, Past Due [Line Items]
Total loans	267	176
Commercial real estate | Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	267	126
Commercial real estate | Past Due Over 30 Days Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans		50
Commercial real estate | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	22,437	21,302
Construction and land
Financing Receivable, Past Due [Line Items]
Total loans	30,310	13,857
Construction and land | Past due
Financing Receivable, Past Due [Line Items]
Total loans	14
Construction and land | Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	14
Construction and land | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	30,271	13,815
Construction and land | Current and Non-Accruing
Financing Receivable, Past Due [Line Items]
Total loans	25	42
Multi-family residential
Financing Receivable, Past Due [Line Items]
Total loans	2,622	3,373
Multi-family residential | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	2,622	3,373
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	26,507	19,984
Commercial and industrial | Past due
Financing Receivable, Past Due [Line Items]
Total loans	3	46
Commercial and industrial | Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	3	46
Commercial and industrial | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	26,504	19,938
Consumer
Financing Receivable, Past Due [Line Items]
Total loans	2,306	2,605
Consumer | Past due
Financing Receivable, Past Due [Line Items]
Total loans	14	12
Consumer | Past Due 30-89 Days Accruing
Financing Receivable, Past Due [Line Items]
Total loans	14	12
Consumer | Current and Accruing
Financing Receivable, Past Due [Line Items]
Total loans	$ 2,292	$ 2,593