STOCK OFFERINGS (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Aug. 27, 2019	Apr. 20, 2017	Mar. 13, 2017	Jun. 30, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 10, 2017
Stock offering
Number of designated preferred shares (in shares)					733	783
Preferred stock redemption	$ 500				$ 500	$ 0	$ 8,500
Series B Preferred Stock
Stock offering
Number of designated preferred shares (in shares)				400
Dividend rate				6.00%
Period from first, second, third, fourth, and fifth anniversary of original issue date that stock may be convertible				30 days
Conversion price (in dollars per share)				$ 16
Liquidation amount				$ 10
Series C Preferred Stock
Stock offering
Number of designated preferred shares (in shares)				383.4
Dividend rate				6.50%
Period from first, second, third, fourth, and fifth anniversary of original issue date that stock may be convertible				30 days
Conversion price (in dollars per share)				$ 16
Liquidation amount				$ 10
Rights Offering
Stock offering
Number of shares into which rights may be converted (in shares)								434,783
Stock offering (in shares)		434,783
Proceeds from stock offering, net of issuance costs		$ 5,000
Chief Executive Officer
Stock offering
Stock offering (in shares)			100,000
Chief Executive Officer | Investment Agreement
Stock offering
Stock offering (in shares)			9,001
Chief Executive Officer | Rights Offering
Stock offering
Stock offering (in shares)			90,999
Maximum | Chief Executive Officer | Investment Agreement
Stock offering
Number of shares into which rights may be converted (in shares)			100,000