FAIR VALUE DISCLOSURES - Valuation Methodology and Unobservable Inputs for Level 3 Assets (Details) - Fair Value, Measurements, Nonrecurring $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Fair Value	$ 3,821	$ 6,364
Commercial and industrial loans: | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Fair Value	$ 3,281	$ 5,342
Commercial and industrial loans: | Average | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.72	0.65
Commercial and industrial loans: | Minimum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.63	0.22
Commercial and industrial loans: | Maximum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.99	0.99
Commercial Real Estate and Multifamily Residential | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Fair Value	$ 498	$ 791
Commercial Real Estate and Multifamily Residential | Average | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.54	0.51
Commercial Real Estate and Multifamily Residential | Minimum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.37	0.34
Commercial Real Estate and Multifamily Residential | Maximum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.71	0.68
Agri-business and agricultural loans | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Fair Value	$ 42	$ 231
Agri-business and agricultural loans | Average | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.71	0.35
Agri-business and agricultural loans | Minimum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.71	0.03
Agri-business and agricultural loans | Maximum | Valuation, Collateral Based Measurements | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs		0.68
Other Real Estate Owned | Valuation, Cost Approach | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Fair Value	$ 196	$ 196
Other Real Estate Owned | Average | Valuation, Cost Approach | Measurement Input, Discount Rate
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items]
Average and Range of Inputs	0.38	0.38