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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Current assets    
Cash and cash equivalents $ 1,283 $ 3,999
Restricted cash 1,062 1,325
Accounts receivables, net 397 317
Inventories 1,250 1,248
Prepaid expenses and other current assets 382 700
Total current assets 4,374 7,589
Property, plant and equipment, net 1,099 1,298
Total assets 5,473 8,887
Current liabilities    
Accounts payable 5,607 3,846
Accrued expenses 5,220 3,408
Current portion of convertible notes payable, net of discount 387 0
Warrant liability 6,883 560
Total current liabilities 18,097 7,814
Convertible notes payable, net of current portion and debt discount 27 0
Other non-current liabilities 439 395
Total liabilities 18,563 8,209
Commitments and Contingencies
Stockholders' equity (deficit)    
Preferred stock, $.01 par value; 10,000,000 shares authorized; no shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively 0 0
Common stock, $.01 par value; 1,000,000,000 shares authorized; 932,159 and 263,305 shares issued and 932,158 and 263,304 shares outstanding at June 30, 2018 and December 31, 2017, respectively* [1] 9 3
Additional paid-in capital 311,293 325,516
Accumulated deficit (324,305) (324,832)
Treasury stock, at cost; 1 share at June 30, 2018 and December 31, 2017, respectively* [1] (51) (51)
Accumulated other comprehensive (loss) income (36) 42
Total stockholders' (deficit) equity (13,090) 678
Total liabilities and stockholders' equity $ 5,473 $ 8,887
[1] reflects a one-for-three hundred and fifty (1:350) reverse stock split effected on November 6, 2017 and a one-for-five hundred (1:500) reverse stock split effected on May 2, 2018.