CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 18,069,000	$ 21,820,000	$ 10,472,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,693,000	3,521,000	3,212,000
Purchased loans amortization (accretion), net	27,000	(11,000)	274,000
Provision for (recapture of) loan losses	750,000	(4,625,000)	6,300,000
Provision (benefit) for deferred income taxes	(144,000)	1,010,000	(1,429,000)
Stock-based compensation expense	390,000	319,000	396,000
Increase (decrease) in deferred loan origination fees, net of amortization	(92,000)	(2,125,000)	2,477,000
Origination of loans held for sale			(913,000)
Proceeds from sales of loans held for sale			1,214,000
Net gains on loans held for sale and sales of premises and equipment		(993,000)	(14,000)
Income from BOLI	(821,000)	(800,000)	(813,000)
BOLI death benefit in excess of cash surrender value		(500,000)
Changes in certain other assets and liabilities:
Prepaid expenses and other assets	(3,604,000)	1,336,000	391,000
Accrued interest receivable	(140,000)	586,000	(1,532,000)
Accrued expenses and other liabilities	(3,553,000)	(3,075,000)	4,132,000
Net cash provided by operating activities	13,575,000	16,463,000	24,167,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Loan repayments (originations), net	32,755,000	40,833,000	(30,379,000)
Purchases of loans receivable	(51,102,000)	(85,900,000)	(3,844,000)
Principal repayments on investment securities available for sale	14,422,000	37,157,000	43,824,000
Purchases of investment securities available for sale	(73,303,000)	(86,621,000)	(120,371,000)
Proceeds from calls of investment securities available for sale	2,010,000		4,000,000
Principal repayments on investment securities held to maturity	17,218,000	9,627,000	248,000
Purchases of investment securities held to maturity	(8,496,000)	(137,936,000)	(39,871,000)
Purchases of premises and equipment and capitalized software	(4,964,000)	(3,254,000)	(3,552,000)
Purchase of FHLB stock, net	(4,848,000)	(297,000)	(302,000)
Proceeds from death benefit on BOLI		1,305,000
Proceeds from sales of real estate owned ("REO") and premises and equipment	63,000	3,427,000
Net cash used in investing activities	(76,245,000)	(221,659,000)	(150,247,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in deposits	(268,661,000)	187,818,000	355,617,000
Dividends paid	(5,117,000)	(4,670,000)	(4,478,000)
Proceeds from borrowings	199,779,000	2,000,000	31,000,000
Repayment of borrowings	(76,025,000)	(2,000,000)	(31,000,000)
Net increase in advance payments by borrowers for taxes and insurance	70,000	34,000	(182,000)
Principal payments on finance lease liability	(54,000)	(46,000)	(40,000)
Proceeds from exercise of stock options	4,000	16,000	50,000
Repurchase of common stock	(6,706,000)	(1,940,000)	(1,447,000)
Net cash (used in) provided by financing activities	(156,710,000)	181,212,000	349,520,000
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(219,380,000)	(23,984,000)	223,440,000
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	241,424,000	265,408,000	41,968,000
CASH AND CASH EQUIVALENTS, END OF YEAR	22,044,000	241,424,000	265,408,000
Cash paid during the period for:
Interest	3,742,000	1,947,000	3,255,000
Income taxes	6,239,000	5,410,000	4,738,000
NONCASH INVESTING AND FINANCING ACTIVITIES:
Dividends declared and accrued in other liabilities	1,274,000	1,217,000	1,118,000
Net unrealized holding losses from available for sale investment securities	(11,000,000)	(12,882,000)	(2,972,000)
Income tax effect related to other comprehensive income	$ 2,641,000	3,091,000	713,000
ROU lease assets obtained in exchange for operating lease liabilities		$ 441,000	$ 6,148,000