Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited)

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 22,175 $ 25,351
Account and other receivables, net of allowance 29 41
Prepaid expenses and other current assets 651 243
Inventories 354 99
Note receivable 1,856
Total current assets 23,209 27,590
Inventories 400 388
Property and equipment, net 1,028 471
Intangible assets, net 34 36
Operating lease right of use asset 1,710 1,926
Other long-term assets 35 36
Total assets 26,416 30,447
Current liabilities:    
Accounts payable 154 194
Accrued liabilities 1,269 909
Current portion of long-term debt 28 109
Derivative liabilities 1,299 1,238
Current portion of operating lease liability 423 403
Other current liabilities 23 26
Total current liabilities 3,196 2,879
Operating lease liability, net of current portion 1,259 1,477
Long term debt, net of current portion 482 287
Total liabilities 4,937 4,643
Commitments and contingencies
Stockholders’ equity:    
Common stock, $0.01 par value, 250,000,000 shares authorized; 24,700,074  and 24,552,409 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively. 247 245
Additional paid-in capital 267,171 266,666
Accumulated deficit (245,939) (241,107)
Total stockholders’ equity 21,479 25,804
Total liabilities and stockholders’ equity 26,416 30,447
Series B Convertible Preferred Stock [Member]    
Stockholders’ equity:    
Convertible preferred stock, value
Series C Convertible Preferred Stock [Member]    
Stockholders’ equity:    
Convertible preferred stock, value