Schedule H, Line 4i – Schedule of Assets (Held At End of Year) (Details) - EBP 002	12 Months Ended
Dec. 31, 2025 USD ($) shares
EBP, Schedule of Asset Held for Investment [Line Items]
Entity tax identification number	43-1626350
Plan number	002
Current Value	$ 52,105,542
Mutual funds
EBP, Schedule of Asset Held for Investment [Line Items]
Current Value	$ 36,994,263
Common stock
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	433,236
Current Value	$ 15,111,279
Investment, Identifier [Axis]: COMMON STOCK \| Hawthorn Bancshares, Inc. Common Stock
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	433,236
Current Value	$ 15,111,279
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2015 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	5,771
Current Value	$ 74,161
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2020 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	15,532
Current Value	$ 219,784
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2025 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	117,612
Current Value	$ 1,886,493
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2030 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	132,471
Current Value	$ 2,467,941
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2035 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	158,086
Current Value	$ 3,289,775
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2040 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	103,673
Current Value	$ 2,376,186
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2045 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	65,115
Current Value	$ 1,551,702
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2050 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	85,089
Current Value	$ 1,999,585
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2055 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	41,823
Current Value	$ 1,241,732
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2060 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	28,724
Current Value	$ 583,675
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2065 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	15,188
Current Value	$ 304,521
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS 2070 TARGET DATE FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	542
Current Value	$ 6,977
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS AMERICAN BALANCED
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	11,848
Current Value	$ 443,225
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS BOND FUND OF AMER
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	132,259
Current Value	$ 1,514,363
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS EUROPACIFIC GR
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	25,739
Current Value	$ 1,510,612
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS FUNDAMENTAL INVESTORS
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	21,884
Current Value	$ 2,004,762
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS GROWTH FUND OF AMER
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	47,822
Current Value	$ 3,793,695
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS NEW PERSPECTIVE
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	33,673
Current Value	$ 2,328,855
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS NEW WORLD FUND
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	1,283
Current Value	$ 118,759
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS SMALLCAP WORLD
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	17,346
Current Value	$ 1,259,457
Investment, Identifier [Axis]: MUTUAL FUNDS \| AMERICAN FUNDS US GOVT MONEY MARKET
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	1,889,729
Current Value	$ 1,889,729
Investment, Identifier [Axis]: MUTUAL FUNDS \| CALVERT BOND A
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	32,120
Current Value	$ 474,739
Investment, Identifier [Axis]: MUTUAL FUNDS \| COLUMBIA LARGE CAP INDEX A
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	14,722
Current Value	$ 783,820
Investment, Identifier [Axis]: MUTUAL FUNDS \| INVESCO MAIN STREET SMALL CAP A
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	15,208
Current Value	$ 335,632
Investment, Identifier [Axis]: MUTUAL FUNDS \| ISHARES RUSSELL MID-CAP INDEX A
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	55,204
Current Value	$ 849,039
Investment, Identifier [Axis]: MUTUAL FUNDS \| JPMORGAN LARGE CAP GROWTH
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	95
Current Value	$ 7,518
Investment, Identifier [Axis]: MUTUAL FUNDS \| PGIM GLOBAL REAL ESTATE
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	9,201
Current Value	$ 188,626
Investment, Identifier [Axis]: MUTUAL FUNDS \| PUTNAM LARGE CAP VALUE A
EBP, Schedule of Asset Held for Investment [Line Items]
Description of Investment (in shares) \| shares	88,889
Current Value	$ 3,488,900

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2

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- Definition

Current value of investment, excluding plan interest in master trust, in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

+ References

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Period Type:	instant

- Definition

Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (3)
-Publisher DOL-EBSA

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (4)
-Publisher DOL-EBSA

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(B)
-Publisher DOL-EBSA

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (2)(i)(B)
-Publisher DOL-EBSA

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 6
-Paragraph d
-Subparagraph (1)(ii)
-Publisher DOL-EBSA

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-02(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

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- Definition

Plan number of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), in three-digit numeric format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
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-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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-Number 2520
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
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-Subparagraph (1)(i)(D)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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-Subsection 10
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