Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) - USD ($) $ in Thousands |
9 Months Ended | |
---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
|
Proceeds from the sale of convertible promissory notes, offering costs | $ 7 | |
Proceeds from issuance of common stock and warrants, issuance costs | $ 16 | $ 27 |