STOCKHOLDERS’ EQUITY (Details Narrative) - USD ($)					1 Months Ended			2 Months Ended	12 Months Ended
	Dec. 21, 2020	Dec. 11, 2020	Oct. 30, 2019	Nov. 09, 2018	Apr. 30, 2019	Oct. 31, 2018	Jul. 31, 2018	May 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Feb. 05, 2020	Apr. 30, 2018	Aug. 31, 2015	Mar. 31, 2014
Class of Stock [Line Items]
Preferred shares authorized									100,000	100,000
Stated value per share									$ 0.01	$ 0.01
Conversion of Series E Preferred stock for common stock						2
Shares issued upon conversion						20,000
Value of stock repurchased during period										$ 89,000
Common stock, shares outstanding									11,112,708	10,869,530
Warrants outstanding									78,181,855
Warrants [Member]
Class of Stock [Line Items]
Weighted average exercise price									$ 0.26
Warrant [Member]
Class of Stock [Line Items]
Term of warrant											5 years
Adjustable warrants, shares									77,489,372
Number of warrants expired									1,189,079
Warrant [Member] | February 5, 2020 Term Loan [Member]
Class of Stock [Line Items]
Warrants outstanding									42,266,304
Warrant [Member] | October 30, 2020 Term Loans [Member]
Class of Stock [Line Items]
Warrants outstanding									1,587,301
Subscription Agreements [Member] | Warrant [Member]
Class of Stock [Line Items]
Warrants to purchase shares of common stock				0.75
Exercise price per share				$ 0.55				$ 0.55
Warrants term description								five years
Subscription Agreements [Member] | Warrant [Member] | Private Placement [Member]
Class of Stock [Line Items]
Number of shares sold during period				73
Warrants to purchase shares of common stock				73,000			308,000	2,958,460
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock designated									1,000
Series A Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock designated									90,000
Series C Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred shares authorized									1,200	1,200
Preferred stock designated														1,200
Stated value per share									$ 0.01	$ 0.01
Preferred stock outstanding									100	100
Series D Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred shares authorized									220	220
Preferred stock designated													220
Stated value per share									$ 0.01	$ 0.01
Preferred stock outstanding									40	40
Series E Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred shares authorized									3,500	3,500
Preferred stock designated												3,500
Stated value per share									$ 0.01	$ 0.01
Preferred stock outstanding									3,458	3,478
Number of unregistered shares issued during period	121,480	121,699			107,846
Number of shares converted	10	10			10
Accrued dividends									$ 3,700,000	$ 2,400,000
Series E Convertible Preferred Stock [Member] | Subscription Agreements [Member]
Class of Stock [Line Items]
Preferred stock stated dividend rate								8.00%
Number of shares sold during period								2,812
Series E Convertible Preferred Stock [Member] | Subscription Agreements [Member] | Private Placement [Member]
Class of Stock [Line Items]
Proceeds from private placement								$ 12,200,000
Placement agent fees and estimated expenses								$ 2,000,000.0
Series E Convertible Preferred Stock [Member] | Subscription Agreements [Member] | Warrant [Member]
Class of Stock [Line Items]
Common stock at a conversion price, per share								$ 0.50
Purchase price of preferred stock								$ 5,000
Term of warrant								5 years
Warrants to purchase shares of common stock								0.75
Series F Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred shares authorized									2,200	2,200
Preferred stock designated							2,200
Stated value per share									$ 0.01	$ 0.01
Preferred stock outstanding									361	361
Warrants to purchase shares of common stock			150,000
Accrued dividends									$ 347,000	$ 202,000
Stock repurchased during period			20
Value of stock repurchased during period			$ 100,000
Value of warrants held			$ 100,000
Series F Convertible Preferred Stock [Member] | Subscription Agreements [Member]
Class of Stock [Line Items]
Common stock at a conversion price, per share							$ 0.50
Preferred stock stated dividend rate							8.00%
Number of shares sold during period							308
Purchase price of preferred stock				$ 5,000			$ 5,000
Term of warrant				5 years			5 years
Exercise price per share							$ 0.50
Warrants term description							five years
Proceeds from private placement							$ 1,400,000
Placement agent fees and estimated expenses							$ 180,000
Weighted average exercise price							$ 0.55
Value of stock issued after convertible securities conversion				$ 310,000
Series F Convertible Preferred Stock [Member] | Subscription Agreements [Member] | Warrant [Member]
Class of Stock [Line Items]
Warrants to purchase shares of common stock							0.75
Exercise price per share							$ 0.55
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Stated value per share									$ 5,000
Preferred stock liquidation preference per share									$ 5,100
Preferred stock, voting rights									voting rights of 666.67 votes per share
Common stock at a conversion price, per share									$ 7.50
Preferred stock outstanding									100	100
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Stated value per share									$ 5,000
Preferred stock liquidation preference per share									$ 300
Preferred stock, voting rights									voting rights of 1,250 votes per
Common stock at a conversion price, per share									$ 4.00
Preferred stock outstanding									40	40
Preferred stock stated dividend rate									5.00%