Loans and Allowance for Credit Losses - Allowance for credit losses (Details) - USD ($)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Loans
Beginning Balance	$ 855,455	$ 642,336
Provision for (recovery of) credit losses	(5,066)	(100,661)
Charge-offs		(5,551)
Recoveries	2,643	56,837
Ending Balance	853,032	855,455
Off-balance sheet commitments
Beginning Balance	56,091	0
Provision for (recovery of) credit losses	20,354	(42,563)
Ending Balance	76,445	56,091
Total
Beginning Balance	911,546	642,336
Provision for (recovery of) credit losses	15,288	(143,224)
Charge-offs		(5,551)
Recoveries	2,643	56,837
Ending Balance	929,477	911,546
Accrued interest written off	0	0
Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	262,494
Ending Balance		262,494
Off-balance sheet commitments
Beginning Balance	98,654
Ending Balance		98,654
Total
Beginning Balance	361,148
Ending Balance		361,148
Real estate loans \| Residential
Loans
Beginning Balance	394,445	360,908
Provision for (recovery of) credit losses	(16,765)	21,588
Ending Balance	377,680	394,445
Real estate loans \| Residential \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	11,949
Ending Balance		11,949
Real estate loans \| Multi-family
Loans
Beginning Balance	0	13,350
Provision for (recovery of) credit losses	7,254
Ending Balance	7,254	0
Real estate loans \| Multi-family \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	(13,350)
Ending Balance		(13,350)
Real estate loans \| Commercial
Loans
Beginning Balance	333,596	166,345
Provision for (recovery of) credit losses	3,742	(22,429)
Recoveries		52,356
Ending Balance	337,338	333,596
Real estate loans \| Commercial \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	137,324
Ending Balance		137,324
Real estate loans \| Construction and land
Loans
Beginning Balance	46,672	43,631
Provision for (recovery of) credit losses	(8,189)	(90,990)
Ending Balance	38,483	46,672
Real estate loans \| Construction and land \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	94,031
Ending Balance		94,031
Real estate loans \| Home equity line of credit (HELOC)
Loans
Beginning Balance		16,034
Provision for (recovery of) credit losses	23,949
Ending Balance	23,949
Real estate loans \| Home equity line of credit (HELOC) \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	(16,034)
Ending Balance		(16,034)
Commercial and industrial
Loans
Beginning Balance	41,764	34,110
Provision for (recovery of) credit losses	(4,100)	(19,887)
Recoveries	1,643	3,800
Ending Balance	39,307	41,764
Commercial and industrial \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	23,741
Ending Balance		23,741
Consumer
Loans
Beginning Balance	38,978	7,958
Provision for (recovery of) credit losses	(10,957)	11,057
Charge-offs		(5,551)
Recoveries	1,000	681
Ending Balance	29,021	38,978
Consumer \| Effect of change in accounting principle - ASC 326
Loans
Beginning Balance	$ 24,833
Ending Balance		$ 24,833

Monroe Federal Bancorp, Inc. 10-K