Number of common warrants sold per share of common stock.

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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-Topic 505
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- Definition

Face amount or stated value per share of common stock.

+ References

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- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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- Definition

Description of management's evaluation of the significance of conditions or events in relation to the ability to meet its obligations.

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Liquidity (Narrative) (Details) - USD ($)						2 Months Ended	6 Months Ended
Liquidity (Narrative) (Details) - USD ($)	Mar. 17, 2021	Jan. 26, 2021	Mar. 27, 2020	Feb. 12, 2020	Jan. 27, 2020	Mar. 27, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Cash and cash equivalents							$ 17,536,000	$ 9,649,000	$ 19,786,000
Liquidity, management evaluation							The Company has prepared its consolidated financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. However, the Company has incurred net losses since its inception and has negative operating cash flows. These circumstances raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the outcome of the uncertainty concerning the Company’s ability to continue as a going concern.
Common stock, par value (in dollars per share)							$ 0.01	$ 0.01
Securities Purchase Agreement [Member]
Shares Issued, Price Per Share		$ 3.25
Stock Issued During Period, Shares, New Issues			7,717,661	993,139
Proceeds from issuance of private placement			$ 22,200,000	$ 2,800,000		$ 25,000,000.0
Common stock, par value (in dollars per share)		0.01
Number of common warrants sold per share of common stock			1		1
Securities Purchase Agreement [Member] \| Common Stock Subject to Mandatory Redemption [Member]
Shares Issued, Price Per Share		$ 3.25	$ 2.87			$ 2.87
Stock Issued During Period, Shares, New Issues		6,153,847				8,710,800
Securities Purchase Agreement [Member] \| Warrants and Rights Subject to Mandatory Redemption [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		6,153,847	8,710,800			8,710,800
Securities Purchase Agreement [Member] \| Warrants and Rights Subject to Mandatory Redemption [Member] \| Maximum [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		6,153,847
Securities Purchase Agreement First Tranche [Member]
Proceeds from issuance of private placement		$ 6,100,000
Securities Purchase Agreement First Tranche [Member] \| Common Stock Subject to Mandatory Redemption [Member]
Stock Issued During Period, Shares, New Issues		1,867,912
Securities Purchase Agreement First Tranche [Member] \| Warrants and Rights Subject to Mandatory Redemption [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		1,867,912
Securities Purchase Agreement Second Tranche [Member]
Proceeds from issuance of private placement	$ 13,900,000
Securities Purchase Agreement Second Tranche [Member] \| Common Stock Subject to Mandatory Redemption [Member]
Stock Issued During Period, Shares, New Issues	4,285,935
Securities Purchase Agreement Second Tranche [Member] \| Warrants and Rights Subject to Mandatory Redemption [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	4,285,935