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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Allowance for doubtful accounts receivable $ 43 $ 40
Accumulated depreciation of fixed assets $ 470 $ 489
Shareholders' equity (deficit):    
Common stock, no par value
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 60,708,225 41,464,373
Common stock, shares outstanding 60,708,225 41,464,373