Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents		$ 16,094	$ 19,375
Accounts receivable, net			978
Assets held for sale		916	441
Prepaid expenses and other current assets		1,479	1,595
Total current assets		18,489	22,389
Property and equipment, net		2,499	6,923
Operating lease right-of-use assets		246	1,146
Other assets		911	720
TOTAL ASSETS		22,145	31,178
Current liabilities
Accounts payable and accrued expenses		1,895	3,115
Other current liabilities		904	1,520
Deferred revenue			74
Total current liabilities		2,799	4,709
Common stock warrant liability		2,238	6,844
Operating lease liabilities		52	43
Other long-term liabilities		113	338
Total liabilities		5,202	11,934
Commitments and Contingencies (Note 16)
STOCKHOLDERS’ EQUITY
Preferred stock – 25,000,000 shares authorized, 0 shares issued and outstanding at September 30, 2022 and December 31, 2021
Common stock - $.001 par value; 250,000,000 shares authorized; 7,219,974 and 3,299,379 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively	[1]	7	3
Additional paid-in capital		532,573	527,639
Accumulated deficit		(515,637)	(508,398)
Total stockholders’ equity		16,943	19,244
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY		$ 22,145	$ 31,178

[1] Giving retroactive effect to the 1-for-25 reverse stock split effectuated on May 16, 2022