Restatements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
CURRENT ASSETS
Cash ($35 pledged as collateral for credit)	$ 106			$ 244	$ 846			$ 3,730
Accounts receivable, net of allowance of $87				520
Prepaid expenses and other current assets	420			900
Current assets held for sale				23
Total current assets	526			1,687
NON-CURRENT ASSETS
Property and equipment, net	608			824
Intangible assets, net	3,223
Other assets	25			27
Total non-current assets	3,856			851
TOTAL ASSETS	4,382			2,538
CURRENT LIABILITIES
Accounts payable	314			1,416
Accrued liabilities	774			828
Note payable	2,435			1,350
Warrant derivative liabilities	3,759			3,104
Current liabilities held for sale				34
Total current liabilities	7,685			6,732
COMMITMENTS AND CONTINGENCIES
Total liabilities	7,685			6,732
STOCKHOLDERS' EQUITY (DEFICIT) (Numbers of shares rounded to thousands)
Preferred stock, $0.001 par value; 5,000 shares authorized; none issued
Common stock, $0.001 par value; 100,000 shares authorized, 52,571 shares issued and 51,986 shares outstanding	69			53
Additional paid-in-capital	125,681			113,310
Accumulated deficit	(127,382)			(115,886)
Treasury stock, at cost	(1,671)			(1,671)
Total stockholders' equity	(3,303)	$ (1,873)	$ (2,022)	(4,194)	27	$ 1,911	$ 2,617	4,780
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 4,382			$ 2,538
Previously Reported [Member]
CURRENT ASSETS
Cash ($35 pledged as collateral for credit)					846			3,730
Accounts receivable, net of allowance of $87					1,245
Prepaid expenses and other current assets					207
Current assets held for sale					617
Total current assets					2,915
NON-CURRENT ASSETS
Property and equipment, net					2,132
Intangible assets, net					1,130
Non-current assets held for sale					820
Other assets					27
Total non-current assets					4,109
TOTAL ASSETS					7,024
CURRENT LIABILITIES
Accounts payable					1,427
Accrued liabilities					919
Note payable					1,000
Warrant derivative liabilities
Current liabilities held for sale					10
Total current liabilities					3,356
COMMITMENTS AND CONTINGENCIES
Total liabilities					3,356
STOCKHOLDERS' EQUITY (DEFICIT) (Numbers of shares rounded to thousands)
Preferred stock, $0.001 par value; 5,000 shares authorized; none issued
Common stock, $0.001 par value; 100,000 shares authorized, 52,571 shares issued and 51,986 shares outstanding					53
Additional paid-in-capital					129,550
Accumulated deficit					(124,264)
Treasury stock, at cost					(1,671)
Total stockholders' equity					3,668
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY					7,024
Restatement Adjustment [Member]
CURRENT LIABILITIES
Warrant derivative liabilities					3,641
Total current liabilities					3,641
COMMITMENTS AND CONTINGENCIES
Total liabilities					3,641
STOCKHOLDERS' EQUITY (DEFICIT) (Numbers of shares rounded to thousands)
Preferred stock, $0.001 par value; 5,000 shares authorized; none issued
Additional paid-in-capital					(16,409)
Accumulated deficit					12,768
Total stockholders' equity					(3,641)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY
As Restated [Member]
CURRENT ASSETS
Cash ($35 pledged as collateral for credit)					846			$ 3,730
Accounts receivable, net of allowance of $87					1,245
Prepaid expenses and other current assets					207
Current assets held for sale					617
Total current assets					2,915
NON-CURRENT ASSETS
Property and equipment, net					2,132
Intangible assets, net					1,130
Non-current assets held for sale					820
Other assets					27
Total non-current assets					4,109
TOTAL ASSETS					7,024
CURRENT LIABILITIES
Accounts payable					1,427
Accrued liabilities					919
Note payable					1,000
Warrant derivative liabilities					3,641
Current liabilities held for sale					10
Total current liabilities					6,997
COMMITMENTS AND CONTINGENCIES
Total liabilities					6,997
STOCKHOLDERS' EQUITY (DEFICIT) (Numbers of shares rounded to thousands)
Preferred stock, $0.001 par value; 5,000 shares authorized; none issued
Common stock, $0.001 par value; 100,000 shares authorized, 52,571 shares issued and 51,986 shares outstanding					53
Additional paid-in-capital					113,141
Accumulated deficit					(111,496)
Treasury stock, at cost					(1,671)
Total stockholders' equity					27
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY					$ 7,024