Junior Subordinated Debentures Issued to Capital Trusts (Details) - USD ($)	1 Months Ended						12 Months Ended
	Dec. 31, 2006	Oct. 31, 2004	Jun. 30, 2004	Mar. 30, 2004	Oct. 31, 2003	Jun. 30, 2003	Dec. 31, 2022	Jun. 24, 2020
Subordinate Debenture [Line Items]
Junior subordinated debentures and the securities variable rate							5.49%
Interest rate on junior subordinated debentures and securities								5.625%
Salin
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold					$ 20,000,000
Junior subordinated debentures and the securities variable rate					2.95%
Interest rate on junior subordinated debentures and securities							7.72%
Subordinated notes							$ 18,100,000
Horizon Statutory Trust II
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold		$ 10,300,000
Junior subordinated debentures and the securities variable rate		1.95%
Interest rate on junior subordinated debentures and securities							6.72%
Cost of issuance of the securities							$ 17,500
Horizon Bancorp Capital Trust III
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold	$ 12,400,000
Junior subordinated debentures and the securities variable rate	1.65%
Interest rate on junior subordinated debentures and securities							6.42%
Cost of issuance of the securities							$ 12,647
Alliance Financial Statutory Trust I
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold			$ 5,200,000
Junior subordinated debentures and the securities variable rate			2.65%
Interest rate on junior subordinated debentures and securities							7.42%
Am Tru Statutory Trust I
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold				$ 3,500,000
Junior subordinated debentures and the securities variable rate				2.85%
Interest rate on junior subordinated debentures and securities							7.62%
Subordinated notes							$ 3,500,000
Heartland Trust
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold	$ 3,000,000
Junior subordinated debentures and the securities variable rate	1.67%
Interest rate on junior subordinated debentures and securities							6.44%
Subordinated notes							$ 2,100,000
City Savings Trust
Subordinate Debenture [Line Items]
Trust Preferred Capital Securities Sold						$ 5,000,000
Junior subordinated debentures and the securities variable rate						3.10%
Interest rate on junior subordinated debentures and securities							7.87%
Subordinated notes							$ 4,500,000