Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Organization and Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stockholders' Equity - Additional information - August 2019 Equity Offering (Details)

v3.19.3

Stockholders' Equity - Additional information - August 2019 Equity Offering (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity Offering
Proceeds from Issuance of Common Stock				$ 2,467	$ 8,459
Common Stock [Member]
Equity Offering
Stock Issued During Period, Shares, New Issues		1,480,000	850,000
August 2019 Equity Offering \| Warrant Liability [Member]
Equity Offering
Proceeds from Issuance of Warrants		$ 1,400
August 2019 Equity Offering \| Common Stock [Member]
Equity Offering
Stock Issued During Period, Shares, New Issues	1,480,000
August 2019 Equity Offering \| Additional Paid-In Capital [Member]
Equity Offering
Proceeds from Issuance of Common Stock		$ 600
August 2019 Equity Offering \| Pre-Funded Warrants [Member] \| Common Stock [Member]
Equity Offering
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	1,372,314
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.01
August 2019 Equity Offering \| Placement Warrants [Member] \| Common Stock [Member]
Equity Offering
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	2,852,314
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 1.07

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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- Definition

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