Derivative Instruments and Hedging Activities - Summary of Derivative Instruments (Details)) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest Rate Swap through 6-15-2031 [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities [Abstract]
Notional/contract amount	$ 4,000	$ 4,000
Expiration date	Jun. 15, 2031	Jun. 15, 2031
Interest Rate Swap through 6-15-2031 [Member] | Cash Flow Hedging [Member] | Other Liabilities [Member]
Derivative Instruments and Hedging Activities [Abstract]
Fair Value	$ (442)	$ (59)
Interest Rate Swap through 2-12-2022 [Member] | Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities [Abstract]
Notional/contract amount	$ 4,150	$ 4,230
Expiration date	Feb. 12, 2022	Feb. 12, 2022
Interest Rate Swap through 2-12-2022 [Member] | Fair Value Hedging [Member] | Other Liabilities [Member]
Derivative Instruments and Hedging Activities [Abstract]
Fair Value	$ (76)	$ (23)
Interest Rate Swap through 9-15-2020 [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities [Abstract]
Notional/contract amount		$ 4,000
Expiration date		Sep. 15, 2020
Interest Rate Swap through 9-15-2020 [Member] | Cash Flow Hedging [Member] | Other Liabilities [Member]
Derivative Instruments and Hedging Activities [Abstract]
Fair Value		$ (41)
Interest Rate Swap through 4-9-2025 [Member] | Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities [Abstract]
Notional/contract amount		$ 1,167
Expiration date		Apr. 09, 2025
Interest Rate Swap through 4-9-2025 [Member] | Fair Value Hedging [Member] | Other Liabilities [Member]
Derivative Instruments and Hedging Activities [Abstract]
Fair Value		$ (17)