EQUITY, SHARE-BASED COMPENSATION AND WARRANTS, Summary of Equity Activity (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		$ 7,900		$ (632)
Balance at beginning of period (in shares)				10,790,351
Issuance of common stock awards under equity incentive plans				$ 817
Dividend on preferred stock - beneficial conversion feature				0
Modification of senior debenture holder warrants				582
Modification of subordinated note holder warrants				117
Change in classification of preferred stock to equity from liability				1,545
Change in classification of warrants to equity from liability				7,851
Conversion of preferred stock into common stock				0
Proceeds from sale of common stock, net of costs				$ 2,730
Proceeds from sale of common stock, net of costs (in shares)				2,654,732
Exercise of warrant				$ 101
Other				64
Proceeds from sale of membership interests				650
Foreign currency translation				131
Net loss	$ 2,507		$ (1,550)	(1,564)	$ (9,804)
Balance at end of period	$ 12,392		$ (36)	$ 12,392	$ (36)
Balance at end of period (in shares)	16,551,350			16,551,350
Series F Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of preferred stock into common stock (in shares)	2,186	315
Series G Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of preferred stock into common stock (in shares)	689	11
Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				$ 0
Issuance of common stock awards under equity incentive plans				0
Dividend on preferred stock - beneficial conversion feature				0
Modification of senior debenture holder warrants				0
Modification of subordinated note holder warrants				0
Change in classification of preferred stock to equity from liability				1,545
Change in classification of warrants to equity from liability				0
Conversion of preferred stock into common stock				(807)
Proceeds from sale of common stock, net of costs				0
Exercise of warrant				0
Other				0
Proceeds from sale of membership interests				0
Foreign currency translation				0
Net loss				0
Balance at end of period	$ 738			$ 738
Preferred Stock [Member] | Series F Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)				0
Issuance of common stock awards under equity incentive plans (in shares)				0
Change in classification of preferred stock to equity from liability (in shares)				3,000
Conversion of preferred stock into common stock (in shares)				(2,501)
Proceeds from sale of common stock, net of costs (in shares)				0
Exercise of warrant (in shares)				0
Other (in shares)				0
Balance at end of period (in shares)	499			499
Preferred Stock [Member] | Series G Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)				0
Issuance of common stock awards under equity incentive plans (in shares)				0
Change in classification of preferred stock to equity from liability (in shares)				2,000
Conversion of preferred stock into common stock (in shares)				(700)
Proceeds from sale of common stock, net of costs (in shares)				0
Exercise of warrant (in shares)				0
Other (in shares)				0
Balance at end of period (in shares)	1,300			1,300
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				$ 264,232
Balance at beginning of period (in shares)				10,790,351
Issuance of common stock awards under equity incentive plans				$ 817
Issuance of common stock awards under equity incentive plans (in shares)				642,839
Dividend on preferred stock - beneficial conversion feature				$ 778
Modification of senior debenture holder warrants				582
Modification of subordinated note holder warrants				117
Change in classification of preferred stock to equity from liability				$ 0
Change in classification of preferred stock to equity from liability (in shares)				0
Change in classification of warrants to equity from liability				$ 7,851
Conversion of preferred stock into common stock				$ 807
Conversion of preferred stock into common stock (in shares)	2,111,188	220,439		2,331,627
Proceeds from sale of common stock, net of costs				$ 2,730
Proceeds from sale of common stock, net of costs (in shares)				2,654,732
Exercise of warrant				$ 101
Exercise of warrant (in shares)				103,008
Other				$ 64
Other (in shares)				28,793
Proceeds from sale of membership interests				$ 0
Foreign currency translation				0
Net loss				0
Balance at end of period	$ 278,079			$ 278,079
Balance at end of period (in shares)	16,551,350			16,551,350
Accumulated Deficit [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				$ (259,819)
Issuance of common stock awards under equity incentive plans				0
Dividend on preferred stock - beneficial conversion feature				(778)
Modification of senior debenture holder warrants				0
Modification of subordinated note holder warrants				0
Change in classification of preferred stock to equity from liability				0
Change in classification of warrants to equity from liability				0
Conversion of preferred stock into common stock				0
Proceeds from sale of common stock, net of costs				0
Exercise of warrant				0
Other				0
Proceeds from sale of membership interests				0
Foreign currency translation				0
Net loss				(205)
Balance at end of period	$ (260,802)			(260,802)
Accumulated Deficit Attributable to Non-controlling Interest in Nutra SA [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				(699)
Issuance of common stock awards under equity incentive plans				0
Dividend on preferred stock - beneficial conversion feature				0
Modification of senior debenture holder warrants				0
Modification of subordinated note holder warrants				0
Change in classification of preferred stock to equity from liability				0
Change in classification of warrants to equity from liability				0
Conversion of preferred stock into common stock				0
Proceeds from sale of common stock, net of costs				0
Exercise of warrant				0
Other				0
Proceeds from sale of membership interests				650
Foreign currency translation				38
Net loss				(1,359)
Balance at end of period	(1,370)			(1,370)
Accumulated Other Comprehensive Loss [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period				(4,346)
Issuance of common stock awards under equity incentive plans				0
Dividend on preferred stock - beneficial conversion feature				0
Modification of senior debenture holder warrants				0
Modification of subordinated note holder warrants				0
Change in classification of preferred stock to equity from liability				0
Change in classification of warrants to equity from liability				0
Conversion of preferred stock into common stock				0
Proceeds from sale of common stock, net of costs				0
Exercise of warrant				0
Other				0
Proceeds from sale of membership interests				0
Foreign currency translation				93
Net loss				0
Balance at end of period	$ (4,253)			$ (4,253)