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Loss Per Share (Details Textual) - Restricted shares granted pursuant to 2015 Plan [Member] - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Loss Per Share (Textual)
Vested restricted shares granted	5,834	84,830	5,834	142,662
Unvested restricted shares	1,154,002		1,154,002