CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Rental income		$ 15
Rental expense		(1)
Net rental income		14
General and administrative		592	1,210
Operating loss		(578)	(1,210)
Revaluation of option to purchase redeemable convertible preferred stock (Note 6)			(273)
Interest and other financing expense, net		(71)	(34)
Equity in earnings of equity method investments (Note 4)		11
Loss from continuing operations		(638)	(1,517)
Discontinued operations:
Loss from discontinued operations			(133)
Net loss including portion attributable to non-controlling interest		(638)	(1,650)
Loss attributable to non-controlling interest		2	1
Net loss		(636)	(1,649)
Dividend on redeemable convertible preferred stock			(79)
Accretion of redeemable convertible preferred stock to redemption value	[1]		(1,968)
Net loss attributable to common stockholders and participating securities		$ (636)	$ (3,696)
Basic and diluted net loss per share (Note 2):
Continuing operations (in dollars per share)		$ (0.02)	$ (0.29)
Discontinued operations (in dollars per share)		(0.02)	(0.29)
Earnings Per Share, Diluted (in dollars per share)			$ (0.01)
Shares used in computing basic and diluted net loss per share (in shares)		27,165,761	11,868,619
Other comprehensive income (loss):
Foreign currency translation adjustments		$ (4)	$ 21
Comprehensive loss		$ (640)	$ (1,628)

[1] Based on the rights and privileges of Redeemable Convertible Series B Preferred Stock, since the Company did not obtain shareholder approval at March 31, 2018, the then outstanding Redeemable Convertible Series B Preferred Stock became redeemable at the option of OFI. Consequently, in each reporting period commencing March 31, 2018, the outstanding Redeemable Convertible Series B Preferred Stock is recorded at its maximum redemption value until occurrence of redemption or conversion. These shares were cancelled as a result of the entry into the Remediation Agreement on September 24, 2018.