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- Definition

Class of Warrant or Right, Term

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- Definition

Convertible Preferred Stock, Conversion Price

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- Definition

Convertible Preferred Stock, Number Of Tranches

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- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

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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.

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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.

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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

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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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

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

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, 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.

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- Definition

Cash received on stock transaction after deduction of issuance costs.

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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Liquidity (Details) $ / shares in Units, $ in Thousands						1 Months Ended
Liquidity (Details) $ / shares in Units, $ in Thousands	Jul. 16, 2018 USD ($) $ / shares shares	May 01, 2018 USD ($)	Mar. 09, 2018 USD ($) $ / shares	Mar. 07, 2018 USD ($) tranche $ / shares shares	Dec. 29, 2017 shares	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) shares
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Warrants issued (in shares) \| shares	11,520,000				316,163
Sale of stock, price per share (in usd per share) \| $ / shares	$ 2.10
Exercise price (usd per share) \| $ / shares	$ 0.0001
Warrant term	5 years				5 years
Sale of stock, consideration received on transaction	$ 21,600
Preferred stock, shares issued (in shares) \| shares							0	0
Cash and cash equivalents							$ 5,337	$ 2,319
Restricted cash and cash equivalents							114	$ 10,431
Accounts payable and accrued liabilities							$ 6,000
Series A- Convertible Preferred Stock
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from issuance of private placement				$ 10,700
Series A- Convertible Preferred Stock \| First Tranche
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from issuance of private placement			$ 6,000
Series A- Convertible Preferred Stock \| Second Tranche
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from issuance of private placement		$ 4,700
Common Stock
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Sale of stock, number of shares issued in transaction \| shares	6,845,000
Warrant term	5 years
Warrant
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Sale of stock, number of shares issued in transaction \| shares	4,675,000
Sale of stock, price per share (in usd per share) \| $ / shares	$ 2.0999
Warrant term	5 years
Purchase Agreement \| Series A Non-voting Convertible
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Warrants issued (in shares) \| shares				1,383,631
Warrant term				5 years 6 months
Preferred stock, shares issued (in shares) \| shares				10,700
Conversion price (USD per share) \| $ / shares							$ 1.00
Purchase Agreement \| Series A- Convertible Preferred Stock
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Conversion price (USD per share) \| $ / shares			$ 5.80	$ 6.59
Number of tranches \| tranche				2
Forecast
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from issuance of warrants						$ 4,200