SHAREHOLDERS EQUITY - Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Jun. 14, 2019	Sep. 10, 2018	Jul. 26, 2018	Jul. 23, 2018	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common stock par value					$ 0	$ 0
Issuance of common stock, net of issuance costs						$ 34,450
Common stock issuance costs						$ 4,411
Convertible Preferred Stock Converted to Other Securities			$ 25,000
Common Stock
Class of Stock [Line Items]
Common stock par value					$ 0
Authorized share repurchase	300,000
Number of votes per each share					one
Effective term of program	1 year
Number of shares repurchased					43,698
Average IPO price					$ 16.51
Balance to be repurchased					256,302
Make whole share issuance		128,978
Common Stock | Private Placement
Class of Stock [Line Items]
Issuance of common stock (in shares)						67,242
Issuance of common stock, net of issuance costs						$ 1,900
Common stock issuance costs						$ 100
Common Stock | IPO
Class of Stock [Line Items]
Issuance of common stock (in shares)				1,921,775
Average IPO price				$ 19.00
Issuance of common stock, net of issuance costs				$ 32,500
Common stock issuance costs				$ 4,400
Common Stock | Underwriters option
Class of Stock [Line Items]
Issuance of common stock (in shares)				296,250