Changes in Accumulated Other Comprehensive Income (Details Textuals) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Amount of gain (loss) reclassified from accumulated other comprehensive income	$ 0	$ 0	$ 0	$ 0