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Stockholders' Equity - Inducement Plan - stock option activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares
OUTSTANDING OPTIONS
Options granted	100,600
WEIGHTED-AVERAGE EXERCISE PRICE
Options granted | $ / shares	$ 3.09
Inducement Plan
OUTSTANDING OPTIONS
Options exercised	0
Outstanding at end of period	100,600
WEIGHTED-AVERAGE EXERCISE PRICE
Outstanding at end of period | $ / shares	$ 3.09
VESTED AND EXPECTED TO VEST
Outstanding options	100,600
Weighted-Average Exercise Price | $ / shares	$ 3.09
Aggregate Intrinsic Value (in thousands) | $	$ 41
Shares vested	0
Options exercised	0
ADDITIONAL DISCLOSURES
Weighted-average contractual term (years) exercisable at end of period	9 years 8 months 12 days
Weighted-average contractual term outstanding	9 years 8 months 12 days
Aggregate intrinsic value (in thousands) outstanding at end of period | $	$ 41

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