Loans and Allowance for Credit Losses - Schedule of Aging Analysis of Contractually Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Past Due [Line Items]
Total	$ 448,406	$ 402,215
Loans Past Due 90 Days or More Still Accuring	234	102
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	2,339	677
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	178	354
Greater than 89/90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	234	199
Total Past Due
Financing Receivable, Past Due [Line Items]
Total	2,751	1,230
Current
Financing Receivable, Past Due [Line Items]
Total	445,655	400,985
Commercial Real Estate Portfolio Segment \| Real Estate - Construction
Financing Receivable, Past Due [Line Items]
Total	28,633	15,069
Commercial Real Estate Portfolio Segment \| Real Estate - Construction \| Current
Financing Receivable, Past Due [Line Items]
Total	28,633	15,069
Commercial Real Estate Portfolio Segment \| Real Estate - Commercial
Financing Receivable, Past Due [Line Items]
Total	129,235	120,184
Commercial Real Estate Portfolio Segment \| Real Estate - Commercial \| Current
Financing Receivable, Past Due [Line Items]
Total	129,235	120,184
Commercial Real Estate Portfolio Segment \| Real Estate - Residential
Financing Receivable, Past Due [Line Items]
Total	162,041	161,144
Loans Past Due 90 Days or More Still Accuring	96	3
Commercial Real Estate Portfolio Segment \| Real Estate - Residential \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	623	486
Commercial Real Estate Portfolio Segment \| Real Estate - Residential \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	26	0
Commercial Real Estate Portfolio Segment \| Real Estate - Residential \| Greater than 89/90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	96	87
Commercial Real Estate Portfolio Segment \| Real Estate - Residential \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total	745	573
Commercial Real Estate Portfolio Segment \| Real Estate - Residential \| Current
Financing Receivable, Past Due [Line Items]
Total	161,296	160,571
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate
Financing Receivable, Past Due [Line Items]
Total	48,378	32,007
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	235
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total		9
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate \| Greater than 89/90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total		0
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total	235	9
Commercial Non Real Estate Portfolio Segment \| Commercial - Non Real Estate \| Current
Financing Receivable, Past Due [Line Items]
Total	48,143	31,998
Agricultural Portfolio Segment \| Agricultural
Financing Receivable, Past Due [Line Items]
Total	54,655	42,835
Agricultural Portfolio Segment \| Agricultural \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,356	79
Agricultural Portfolio Segment \| Agricultural \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total	1,356	79
Agricultural Portfolio Segment \| Agricultural \| Current
Financing Receivable, Past Due [Line Items]
Total	53,299	42,756
Consumer Portfolio Segment \| Other Consumer
Financing Receivable, Past Due [Line Items]
Total	10,158	14,649
Loans Past Due 90 Days or More Still Accuring	138	99
Consumer Portfolio Segment \| Other Consumer \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	125	112
Consumer Portfolio Segment \| Other Consumer \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	152	345
Consumer Portfolio Segment \| Other Consumer \| Greater than 89/90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	138	112
Consumer Portfolio Segment \| Other Consumer \| Total Past Due
Financing Receivable, Past Due [Line Items]
Total	415	569
Consumer Portfolio Segment \| Other Consumer \| Current
Financing Receivable, Past Due [Line Items]
Total	9,743	14,080
Land Development And SIDs Portfolio Segment \| Land Development and Sanitary & Improvement Districts (SIDs)
Financing Receivable, Past Due [Line Items]
Total	15,306	16,327
Land Development And SIDs Portfolio Segment \| Land Development and Sanitary & Improvement Districts (SIDs) \| Current
Financing Receivable, Past Due [Line Items]
Total	$ 15,306	$ 16,327