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CONSOLIDATED CONDENSED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 9,266 $ 17,552
Accounts receivable 951 1,169
Restricted cash   40
Inventories, net 107 107
Other current assets 469 957
Total current assets 10,793 19,825
Property and equipment, net 2,014 2,179
Operating lease right-of-use assets 707 781
Other assets 18 72
Goodwill 372 372
Total assets 13,904 23,229
Current liabilities:    
Accounts payable and accrued expenses 3,608 3,279
Operating lease liability 139 147
Term loan obligations, net of discount 6,026 11,060
Total current liabilities 9,773 14,486
Noncurrent operating lease liability 589 646
Warrant liability 242 6,929
Other noncurrent liabilities   8
Total liabilities 10,604 22,069
Commitments and contingencies (Note 9)
Stockholders’ equity:    
Preferred stock, $0.001 par value; 5,000,000 shares authorized; 1,959 shares issued and outstanding at June 30, 2020 and December 31, 2019
Common stock, $0.001 par value; 100,000,000 shares authorized; 4,273,857 and 3,880,588 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively 4 4
Additional paid-in capital 431,492 426,426
Accumulated deficit (428,196) (425,270)
Total stockholders’ equity 3,300 1,160
Total liabilities and stockholders’ equity $ 13,904 $ 23,229