Interest Rate Swaps (Details) - USD ($)			3 Months Ended		9 Months Ended
	Jun. 13, 2019	Jun. 03, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Apr. 30, 2021	Dec. 31, 2020	Sep. 30, 2019
Derivative [Line Items]
Interest income (expense)			$ 308,000	$ 847,000	$ 1,158,000	$ 4,858,000
Interest Rate Swap
Derivative [Line Items]
Term of contract		5 years
Fixed interest rate		5.19%
Notional value									$ 10,000,000
Derivative interest income			0		47,000
Derivative interest expense				48,000		153,000
Notional amount, termination							$ 10,000,000
Interest income (expense)					196,200
Interest Rate Swap | Global Wells
Derivative [Line Items]
Term of contract	10 years
Fixed interest rate	5.05%
Notional value									$ 21,580,000
Derivative interest income			155,000	$ 222,000	1,055,000
Derivative interest expense						$ 1,875,000
Interest Rate Swap | Other Liabilities
Derivative [Line Items]
Derivative fair value			0		0			$ 243,000
Interest Rate Swap | Other Liabilities | Global Wells
Derivative [Line Items]
Derivative fair value			$ 1,549,000		$ 1,549,000			$ 2,604,000