Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued	424,938	424,938	420,720
Preferred stock, shares outstanding	424,938	424,938	420,720
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000	100,000,000
Common stock, shares issued	3,246,705	2,522,095	1,693,165
Common stock, shares outstanding	3,246,705	2,522,095	1,693,165