FAIR VALUE OF FINANCIAL INSTRUMENTS - Summary Of Financial Assets Measured On A Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	$ 232,205	$ 212,181
Derivatives in Asset Position	0	689
Derivatives in Liability Position	17,136	3,890
Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Derivatives in Asset Position		0
Derivatives in Liability Position		0
Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	228,689	208,580
Derivatives in Asset Position		689
Derivatives in Liability Position	17,136	3,890
Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	3,516	3,601
Derivatives in Asset Position		0
Derivatives in Liability Position		0
Fair Value, Recurring [Member] | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives in Asset Position		689
Derivatives in Liability Position	17,136	3,890
Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I) | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives in Asset Position		0
Derivatives in Liability Position	0	0
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II) | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives in Asset Position		689
Derivatives in Liability Position	17,136	3,890
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III) | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives in Asset Position		0
Derivatives in Liability Position	0	0
U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	8,100	8,679
U.S. government agencies | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	8,100	8,679
U.S. government agencies | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
U.S. government agencies | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	8,100	8,679
U.S. government agencies | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
U.S. government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	51,020	53,249
U.S. government-sponsored enterprises | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	51,020	53,249
U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	51,020	53,249
U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	47,914	32,214
State and political subdivisions | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	47,914	32,214
State and political subdivisions | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
State and political subdivisions | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	47,914	32,214
State and political subdivisions | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Mortgage-backed securities - U.S. government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	85,674	82,469
Mortgage-backed securities - U.S. government-sponsored enterprises | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	85,674	82,469
Mortgage-backed securities - U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Mortgage-backed securities - U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	85,674	82,469
Mortgage-backed securities - U.S. government-sponsored enterprises | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Mortgage-backed securities - Private mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	26,832	22,445
Mortgage-backed securities - Private mortgage-backed securities | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	26,832	22,445
Mortgage-backed securities - Private mortgage-backed securities | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Mortgage-backed securities - Private mortgage-backed securities | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	24,330	19,873
Mortgage-backed securities - Private mortgage-backed securities | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	2,502	2,572
Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	12,665	13,125
Corporate debt | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	12,665	13,125
Corporate debt | Fair Value, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	0	0
Corporate debt | Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level II)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	11,651	12,096
Corporate debt | Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level III)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available for sale securities	$ 1,014	$ 1,029