STOCKHOLDERS' EQUITY - Preferred Stock (Details)		1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 26, 2019 shares	Jul. 31, 2019 shares	Mar. 31, 2020 vote $ / shares shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2018 $ / shares	Jun. 30, 2019 shares	Mar. 31, 2019 shares
Class of Stock [Line Items]
Number of Votes Per Common Share Held | vote			1
Preferred Stock, Dividend Rate, Per-Dollar-Amount | $ / shares			$ 0.16
Dividend paid (in usd per share) | $ / shares				$ 0.16	$ 0.16
Series A-1 Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares outstanding			4,210,000	4,210,000
Number of convertible preferred shares upon conversion (in shares)			1
Preferred stock | Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding			0			2,895	127,000
Preferred stock | Series A-1 Preferred Stock [Member]
Class of Stock [Line Items]
Shares converted (in shares)	122,526
Preferred stock, shares outstanding			4,210,000				0
Series A Preferred Stock Exchange [Member] | Preferred stock | Series A Preferred Stock
Class of Stock [Line Items]
Shares converted (in shares)	122,526	2,020
Series A Preferred Stock Conversion [Member] | Preferred stock | Series A Preferred Stock
Class of Stock [Line Items]
Shares converted (in shares)	1,144	875