v3.26.1
Segment Information (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2025
segment
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
segment
Jun. 30, 2025
USD ($)
segment
Segment Reporting [Abstract]          
Number of reportable segments | segment 1       2
Number of operating segments | segment       2  
Segment Reporting [Line Items]          
Interest income   $ 24,352 $ 23,911 $ 48,746 $ 47,369
Interest expense   7,094 7,769 14,386 15,933
Net interest income   17,258 16,142 34,360 31,436
Release of credit losses   238 (51) 311 (391)
Operating expenses          
Salaries and employee benefits   7,593 6,703 14,407 13,615
Occupancy, furniture and equipment expense   832 1,405 2,154 2,209
Processing, network, and bank card expense   1,419 1,443 2,837 2,844
Legal, examination, and professional fees   944 428 1,746 921
Depreciation   818 215 1,257 1,140
Other   2,141 2,075 4,348 4,039
Total operating expenses   13,747 12,269 26,749 24,768
Other          
Non-interest income   5,377 3,545 8,477 7,008
Investment securities gains (losses), net   280 (1) 285 (3)
Income taxes   1,604 1,367 2,993 2,580
Net income   7,326 6,101 13,069 11,484
Segment assets       1,773,040 1,877,417
Non-Bank          
Segment Reporting [Line Items]          
Interest income   23 25 49 56
Interest expense   777 855 1,552 1,709
Net interest income   (754) (830) (1,503) (1,653)
Release of credit losses   0 0 0 0
Operating expenses          
Salaries and employee benefits   119 281 362 640
Occupancy, furniture and equipment expense   40 1 (1) 1
Processing, network, and bank card expense   0 (371) 0 0
Legal, examination, and professional fees   301 (150) 455 183
Depreciation   0 0 0 0
Other   306 848 511 453
Total operating expenses   766 609 1,327 1,277
Other          
Non-interest income   1,824 519 922 882
Investment securities gains (losses), net   0 (1) 0 (1)
Income taxes   39 (192) (401) (431)
Net income   265 (729) (1,507) (1,618)
Segment assets       13,199 6,132
Hawthorn Bank | Operating Segments          
Segment Reporting [Line Items]          
Interest income   24,329 23,886 48,697 47,313
Interest expense   6,317 6,914 12,834 14,224
Net interest income   18,012 16,972 35,863 33,089
Release of credit losses   238 (51) 311 (391)
Operating expenses          
Salaries and employee benefits   6,917 6,089 13,304 12,310
Occupancy, furniture and equipment expense   777 1,382 2,120 2,170
Processing, network, and bank card expense   1,379 1,796 2,745 2,808
Legal, examination, and professional fees   643 578 1,291 738
Depreciation   818 215 1,256 1,140
Other   1,788 1,196 3,760 3,540
Total operating expenses   12,322 11,256 24,476 22,706
Other          
Non-interest income   2,899 2,484 6,285 5,072
Investment securities gains (losses), net   280 0 285 (2)
Income taxes   1,565 1,559 3,394 3,011
Net income   7,066 6,692 14,252 12,833
Segment assets       1,759,823 1,871,265
Wealth Management | Operating Segments          
Segment Reporting [Line Items]          
Interest income   0 0 0 0
Interest expense   0 0 0 0
Net interest income   0 0 0 0
Release of credit losses   0 0 0 0
Operating expenses          
Salaries and employee benefits   557 333 741 665
Occupancy, furniture and equipment expense   15 23 35 38
Processing, network, and bank card expense   40 18 92 36
Legal, examination, and professional fees   0 0 0 0
Depreciation   0 0 1 0
Other   47 31 77 46
Total operating expenses   659 405 946 785
Other          
Non-interest income   654 542 1,270 1,054
Investment securities gains (losses), net   0 0 0 0
Income taxes   0 0 0 0
Net income   $ (5) $ 137 324 269
Segment assets       $ 18 $ 20