Stockholders' Equity (Details) - Two Independent Directors [Member]	1 Months Ended
	Jul. 26, 2019 Directors $ / shares shares	Jan. 31, 2019 Directors $ / shares shares	Jul. 26, 2018 Directors $ / shares shares
Stockholders' Equity (Textual)
Common stock shares issued to independent directors | shares	1,630	1,942	2,206
Average market price of the common stock for the five days before the grant date | $ / shares	$ 3.04	$ 3.8	$ 3.39
Number of days used to calculation average market price of common stock, description	Five days before the grant date.	Five days before the grant date.	Five days before the grant date.
Number of directors | Directors	2	2	2