Loans and Allowance for Credit Losses - Summary of Credit Risk Profile of Loans Portfolio Based on Risk Category and Year of Origination (Details) - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Jun. 30, 2026 |
Mar. 31, 2026 |
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
$ 21,351
|
$ 99,776
|
| Fiscal Year before Current Fiscal Year |
91,806
|
65,841
|
| Two Years before Current Fiscal Year |
57,248
|
36,980
|
| Three Years before Current Fiscal Year |
34,972
|
57,943
|
| Four Years before Current Fiscal Year |
54,859
|
75,470
|
| Prior |
151,057
|
79,017
|
| Revolving Loans |
36,227
|
33,379
|
| Total loans |
447,520
|
448,406
|
| Total |
4
|
|
| Real Estate | Real Estate - Construction |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
1,062
|
13,177
|
| Fiscal Year before Current Fiscal Year |
14,685
|
11,698
|
| Two Years before Current Fiscal Year |
2,862
|
2,242
|
| Revolving Loans |
1,375
|
1,516
|
| Total loans |
19,984
|
28,633
|
| Real Estate | Real Estate - Construction | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
1,062
|
13,177
|
| Fiscal Year before Current Fiscal Year |
14,685
|
11,698
|
| Two Years before Current Fiscal Year |
2,862
|
2,242
|
| Revolving Loans |
1,375
|
1,516
|
| Total loans |
19,984
|
28,633
|
| Real Estate | Real Estate - Commercial |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
616
|
18,117
|
| Fiscal Year before Current Fiscal Year |
18,211
|
17,226
|
| Two Years before Current Fiscal Year |
25,116
|
13,408
|
| Three Years before Current Fiscal Year |
15,380
|
25,608
|
| Four Years before Current Fiscal Year |
25,361
|
24,682
|
| Prior |
56,110
|
30,164
|
| Revolving Loans |
20
|
30
|
| Total loans |
140,814
|
129,235
|
| Real Estate | Real Estate - Commercial | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
616
|
18,117
|
| Fiscal Year before Current Fiscal Year |
18,211
|
17,226
|
| Two Years before Current Fiscal Year |
25,116
|
13,026
|
| Three Years before Current Fiscal Year |
15,000
|
25,608
|
| Four Years before Current Fiscal Year |
25,361
|
24,682
|
| Prior |
54,049
|
28,077
|
| Revolving Loans |
20
|
30
|
| Total loans |
138,373
|
126,766
|
| Real Estate | Real Estate - Commercial | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Two Years before Current Fiscal Year |
|
382
|
| Three Years before Current Fiscal Year |
380
|
|
| Prior |
2,061
|
2,087
|
| Total loans |
2,441
|
2,469
|
| Real Estate | Real Estate - Residential |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
6,315
|
22,592
|
| Fiscal Year before Current Fiscal Year |
18,101
|
15,237
|
| Two Years before Current Fiscal Year |
14,891
|
12,185
|
| Three Years before Current Fiscal Year |
10,987
|
19,719
|
| Four Years before Current Fiscal Year |
17,596
|
42,456
|
| Prior |
78,756
|
39,555
|
| Revolving Loans |
9,508
|
10,297
|
| Total loans |
156,154
|
162,041
|
| Real Estate | Real Estate - Residential | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
6,315
|
22,592
|
| Fiscal Year before Current Fiscal Year |
18,101
|
15,237
|
| Two Years before Current Fiscal Year |
14,696
|
12,185
|
| Three Years before Current Fiscal Year |
10,950
|
19,644
|
| Four Years before Current Fiscal Year |
17,559
|
42,437
|
| Prior |
78,486
|
39,282
|
| Revolving Loans |
9,508
|
10,297
|
| Total loans |
155,615
|
161,674
|
| Real Estate | Real Estate - Residential | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Two Years before Current Fiscal Year |
195
|
|
| Three Years before Current Fiscal Year |
37
|
75
|
| Four Years before Current Fiscal Year |
37
|
19
|
| Prior |
270
|
273
|
| Total loans |
539
|
367
|
| Commercial Non Real Estate Portfolio Segment | Commercial - Non Real Estate |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
848
|
24,493
|
| Fiscal Year before Current Fiscal Year |
22,808
|
5,590
|
| Two Years before Current Fiscal Year |
3,206
|
3,492
|
| Three Years before Current Fiscal Year |
3,296
|
1,578
|
| Four Years before Current Fiscal Year |
1,292
|
1,404
|
| Prior |
5,670
|
5,340
|
| Revolving Loans |
5,671
|
6,481
|
| Total loans |
42,791
|
48,378
|
| Current Fiscal Year, Gross Write off |
|
1
|
| Total |
|
1
|
| Commercial Non Real Estate Portfolio Segment | Commercial - Non Real Estate | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
848
|
24,366
|
| Fiscal Year before Current Fiscal Year |
22,451
|
5,590
|
| Two Years before Current Fiscal Year |
3,206
|
3,492
|
| Three Years before Current Fiscal Year |
3,296
|
1,469
|
| Four Years before Current Fiscal Year |
1,187
|
1,404
|
| Prior |
5,368
|
5,124
|
| Revolving Loans |
5,671
|
6,151
|
| Total loans |
42,027
|
47,596
|
| Commercial Non Real Estate Portfolio Segment | Commercial - Non Real Estate | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
|
127
|
| Fiscal Year before Current Fiscal Year |
357
|
|
| Three Years before Current Fiscal Year |
|
109
|
| Four Years before Current Fiscal Year |
105
|
|
| Prior |
302
|
216
|
| Revolving Loans |
|
330
|
| Total loans |
764
|
782
|
| Agricultural Portfolio Segment | Agricultural |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
11,807
|
17,576
|
| Fiscal Year before Current Fiscal Year |
15,152
|
13,705
|
| Two Years before Current Fiscal Year |
9,000
|
1,286
|
| Three Years before Current Fiscal Year |
1,261
|
2,692
|
| Four Years before Current Fiscal Year |
2,640
|
1,747
|
| Prior |
4,700
|
2,594
|
| Revolving Loans |
19,653
|
15,055
|
| Total loans |
64,213
|
54,655
|
| Agricultural Portfolio Segment | Agricultural | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
11,807
|
16,708
|
| Fiscal Year before Current Fiscal Year |
14,560
|
13,705
|
| Two Years before Current Fiscal Year |
9,000
|
1,286
|
| Three Years before Current Fiscal Year |
1,261
|
2,692
|
| Four Years before Current Fiscal Year |
2,640
|
1,747
|
| Prior |
4,280
|
2,594
|
| Revolving Loans |
19,653
|
13,245
|
| Total loans |
63,201
|
51,977
|
| Agricultural Portfolio Segment | Agricultural | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
|
868
|
| Fiscal Year before Current Fiscal Year |
592
|
|
| Prior |
420
|
|
| Revolving Loans |
|
1,810
|
| Total loans |
1,012
|
|
| Consumer Portfolio Segment | Other Consumer |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
703
|
1,840
|
| Fiscal Year before Current Fiscal Year |
1,306
|
1,459
|
| Two Years before Current Fiscal Year |
1,208
|
3,230
|
| Three Years before Current Fiscal Year |
2,911
|
3,038
|
| Four Years before Current Fiscal Year |
2,609
|
113
|
| Prior |
242
|
478
|
| Total loans |
8,979
|
10,158
|
| Current Fiscal Year, Gross Write off |
4
|
17
|
| Total |
4
|
17
|
| Consumer Portfolio Segment | Other Consumer | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
703
|
1,826
|
| Fiscal Year before Current Fiscal Year |
1,293
|
1,416
|
| Two Years before Current Fiscal Year |
1,131
|
3,188
|
| Three Years before Current Fiscal Year |
2,869
|
3,031
|
| Four Years before Current Fiscal Year |
2,602
|
109
|
| Prior |
239
|
478
|
| Total loans |
8,837
|
10,048
|
| Consumer Portfolio Segment | Other Consumer | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
|
14
|
| Fiscal Year before Current Fiscal Year |
13
|
43
|
| Two Years before Current Fiscal Year |
77
|
42
|
| Three Years before Current Fiscal Year |
42
|
7
|
| Four Years before Current Fiscal Year |
7
|
4
|
| Prior |
3
|
|
| Total loans |
142
|
110
|
| Land Development And SIDs Portfolio Segment | Land Development and SIDs |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
0
|
1,981
|
| Fiscal Year before Current Fiscal Year |
1,543
|
926
|
| Two Years before Current Fiscal Year |
965
|
1,137
|
| Three Years before Current Fiscal Year |
1,137
|
5,308
|
| Four Years before Current Fiscal Year |
5,361
|
5,068
|
| Prior |
5,579
|
886
|
| Total loans |
14,585
|
15,306
|
| Land Development And SIDs Portfolio Segment | Land Development and SIDs | Pass |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Current fiscal year |
|
1,981
|
| Fiscal Year before Current Fiscal Year |
1,543
|
926
|
| Two Years before Current Fiscal Year |
965
|
1,137
|
| Three Years before Current Fiscal Year |
1,137
|
5,308
|
| Four Years before Current Fiscal Year |
5,361
|
5,068
|
| Prior |
5,579
|
886
|
| Total loans |
$ 14,585
|
15,306
|
| Land Development And SIDs Portfolio Segment | Land Development and SIDs | Substandard |
|
|
| Financing Receivable, Allowance for Credit Loss [Line Items] |
|
|
| Total loans |
|
$ 2,678
|