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- Definition

Class Of Warrant Or Right, Warrants Issued, Price Per Share

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- Definition

Debt Instrument, Proceeds To Be Paid To Lender, Percent

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- Definition

Payments For Clearing Fees

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- Definition

Payments For Placement Agent Commissions

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- Definition

Payments Related To Expenses For Registered Direct Offering And Concurrent Private Placement

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- Definition

Proceeds from the Issuance of Common Stock and Warrants, Net of Issuance Costs

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No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

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- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Number of shares issued under share-based payment arrangement.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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- Definition

Number of share options (or share units) exercised during the current period.

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Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 25, 2019	Jan. 31, 2020	Sep. 30, 2013	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Mar. 18, 2020	Jun. 21, 2017	Jul. 22, 2015	May 06, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants issued (in shares)				467,306	467,306
Exercise price of warrants (in dollars per share)				$ 3.51	$ 3.51
Vesting period					10 years
Unamortized stock compensation expense				$ 200	$ 200	$ 600
Remaining weighted average life					3 years 1 month 6 days	2 years 7 months 6 days
Exercised (in shares)					12,157	0
Intrinsic value of options exercisable				$ 403	$ 403
Options exercised, intrinsic value					$ 54
Stock price (in dollars per share)				$ 4.03	$ 4.03
Amount paid for clearing fees		$ 231
Offering costs paid on the issuance of common stock and warrants					$ (510)	$ 0
Net proceeds from sale of common stock		$ 2,300
Percent proceeds to be paid to Lender		10.00%
Gross proceeds from equity issuance		$ 275
Payments on the Iliad Note					1,306	$ 0
Proceeds from warrants					1,600
Note Purchase Agreement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent proceeds to be paid to Lender	10.00%
Payments on the Iliad Note					$ 226
Institutional Investor
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants issued (in shares)		688,360			425,626
Exercise price of warrants (in dollars per share)		$ 3.3700
Purchase price (in dollars per share)		$ 0.6250
Private Placement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants issued (in shares)		48,185			41,680
Exercise price of warrants (in dollars per share)		$ 4.9940
Amount paid for placement agent commissions		$ 193
Amount paid related to expenses for registered direct offering and concurrent private placement		$ 50
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			100,000
Number of shares available for grant (in shares)				50,544	50,544
Purchase price of common stock, percent			85.00%
Shares issued in the period (in shares)					26,632	3,138
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					1 year
Minimum \| Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					1 year
Maximum \| Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					4 years
2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)							350,000
Number of shares available for grant (in shares)				331,150	331,150
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)								260,000	120,000	120,000
Vesting periods					10 years
2014 Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
2014 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					4 years