Aggregate offering price of common stock issuable under sales agreement.

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- Definition

Stockholders equity.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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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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Amount of cost to be recognized for option under share-based payment arrangement.

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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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Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance.

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Date the equity-based award expires, in CCYY-MM-DD format.

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- Definition

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

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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

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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No definition available.

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Percentage of vesting of award under share-based payment arrangement.

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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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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended
	Mar. 18, 2020	Sep. 18, 2019	May 14, 2018	Sep. 19, 2017	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019
Stockholders Equity [Line Items]
Common stock, shares issued					10,101,034		10,095,176
Number of share outstanding					1,374,475		1,313,475
Awards granted under the plan					61,000
Unrecognized compensation expense					$ 5.1
Share based compensation arrangement by share based payment award, Average remaining vesting period					2 years
Weighted average grant date fair value of options granted					$ 2.22
2018 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance			500,000			403,807		403,495
Share-based compensation arrangement by share-based payment award, description					In addition, the number of shares authorized for issuance under the 2018 Plan is automatically increased (the “evergreen provision”) on the first day of each fiscal year beginning on January 1, 2019, and ending on (and including) January 1, 2028, in an amount equal to the lesser of (i) 4% of the outstanding shares of common stock on the last day of the immediately preceding fiscal year, or (ii) another amount (including zero) determined by the Company’s Board of Directors. Any shares subject to awards granted under the 2018 Plan that are forfeited or terminated before being exercised or settled, or are not delivered to the participant because such award is settled in cash, will again become available for issuance under the 2018 Plan. Shares withheld to satisfy the grant, exercise price or tax withholding obligation related to an award will again become available for issuance under the 2018 Plan.
Share-based compensation arrangement by share-based payment award, expiration date					Jan. 01, 2028
Share-based compensation arrangement by share-based payment award, percentage of outstanding our common stock					4.00%
Options contractual term			10 years
Available for the grant of future awards					507,953
2018 Stock Incentive Plan \| Executive Officers and Employees
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, stock options vesting period			4 years
2018 Stock Incentive Plan \| Executive Officers and Employees \| One-year Anniversary of the Grant Date
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage			25.00%
2018 Stock Incentive Plan \| Executive Officers and Employees \| Quarterly over Remaining Three Years
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage			75.00%
2018 Stock Incentive Plan \| Executive Officers and Employees \| January 1, 2021
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage		50.00%
2018 Stock Incentive Plan \| Executive Officers and Employees \| January 1, 2022
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage		50.00%
2013 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance				165,000
Options contractual term				10 years
Awards granted under the plan					0
2010 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance				470,170
Options contractual term				10 years
Awards granted under the plan					0
Maximum \| 2010 and 2013 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of share outstanding			635,170
At-the-Market Facility
Stockholders Equity [Line Items]
Common stock, shares issued					0
At-the-Market Facility \| Maximum
Stockholders Equity [Line Items]
Aggregate offering price of common stock	$ 50.0