SHARE-BASED COMPENSATION, STOCK OPTIONS, AND RESTRICTED SECURITIES, SUMMARY OF OPTION ACTIVITY - (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock Option
Stock-based compensation (in dollars)	$ 215	$ 268
Stock Options
Summary of option activity - Shares
Outstanding at the beginning of year (in shares)	4,187	1,858
Granted (in shares)	0	3,000
Expired (in shares)	(17)	(85)
Cancelled/Forfeited (in shares)	(1)	(586)
Outstanding at the end of period (in shares)	4,169	4,187	1,858
Vested at the end of period (in shares)	2,104
Vested and expected to vest at the end of period (in shares)	4,169
Summary of option activity - Weighted Average Exercise Price
Outstanding at the beginning of year (in dollars per shares)	$ 1,077.78	$ 2,976.58
Granted (in dollars per shares)		45.90
Expired (in dollars per shares)	6,780.00	6,794.12
Cancelled/Forfeited (in dollars per shares)	3,262.50	1,195.25
Outstanding at the end of period (in dollars per shares)	1,054.01	$ 1,077.78	$ 2,976.58
Vested at the end of period (in dollars per share)	1,984.48
Vested and expected to vest at the end of period (in dollars per share)	$ 1,054.01
Option activity disclosures
Weighted Average Remaining Contractual Term - Outstanding	7 years 2 months 5 days	8 years 2 months 1 day	7 years 3 months 26 days
Weighted Average Remaining Contractual Term - Vested	6 years 4 months 17 days
Weighted Average Remaining Contractual Term - Vested and expected to vest	7 years 2 months 5 days
Stock Option
Weighted average grant-date fair value of options granted		$ 37.46
Total fair value of options vested	$ 117	$ 135
Stock-based compensation (in dollars)	117	$ 165
Total unrecognized compensation expense	$ 61
Period for unrecognized compensation expense is estimated to be recognized	10 months 2 days