Derivatives and Hedging Activities, Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Details) - Interest Rate Swaps [Member] - Designated as Hedging Instrument [Member] - Cash Flow Hedges [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Income [Member]
Derivatives and Hedging Activities [Abstract]
Gain (loss) reclassified from accumulated other comprehensive loss into income	$ (8)	$ 0	$ (8)	$ 0
Other Comprehensive Loss [Member]
Derivatives and Hedging Activities [Abstract]
Gain (loss) recognized in OCI	$ 396	$ 0	$ 396	$ 0