fair value of Salisbury’s derivative financial instrument and its classification on the Balance Sheet (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Notional Amount [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Products	$ 10,000
Derivative Instrument Fair Value [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Products	4
Total Derivatives designated as hedge instruments	$ 4