Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Allowance for doubtful accounts receivable	$ 113	$ 44
Accumulated depreciation of fixed assets	$ 493	$ 484
Shareholders' equity (deficit):
Common stock, no par value
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	61,667,668	61,566,076
Common stock, shares outstanding	61,667,668	61,566,076