Increase (Decrease) In Cash, Cash Equivalents, And Short-Term Investments

No definition available.

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- Definition

Working Capital Surplus (Deficit)

+ References

No definition available.

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- Definition

Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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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- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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ORGANIZATION AND NATURE OF BUSINESS; BASIS OF PRESENTATION; PRINCIPLES OF CONSOLIDATION (Details)			1 Months Ended				12 Months Ended
	Jan. 23, 2024 USD ($)	Jul. 11, 2023	Aug. 31, 2024 USD ($)	May 31, 2024 USD ($)	Mar. 31, 2023	Apr. 30, 2018 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Aug. 08, 2024 USD ($)	Aug. 31, 2023	Jun. 30, 2023 USD ($)	Jun. 09, 2023	Mar. 15, 2023	Mar. 31, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reverse stock split ratio		0.1
Accumulated deficit							$ 718,899,000	$ 668,857,000
Net loss							50,045,000	61,618,000
Net cash used in operating activities							24,194,000	40,196,000
Working capital							9,000,000.0
Debt Instrument [Line Items]
Proceeds from issuance of 16.00% Notes							15,000,000	0
Cash and cash equivalents and investments							$ 16,300,000	13,200,000
Decrease in cash and cash equivalents and investments								$ 3,100,000
Jack W. Schuler Living Trust
Debt Instrument [Line Items]
Net proceeds	$ 11,000,000			$ 2,700,000
2.50% Convertible Notes due 2023 \| Convertible Notes
Debt Instrument [Line Items]
Interest rate (as a percent)								2.50%					2.50%	2.50%
Aggregate principal amount								$ 700,000						$ 150,000,000
Proceeds from issuance of 16.00% Notes						$ 171,500,000
5.00% Convertible Notes Due 2026 \| Convertible Notes
Debt Instrument [Line Items]
Interest rate (as a percent)			5.00%				5.00%	5.00%		5.00%	5.00%	5.00%
Aggregate principal amount											$ 10,000,000
5.00% Convertible Notes Due 2026 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)											5.00%
Aggregate principal amount											$ 66,900,000
16.00% Super-Priority Senior Secured PIK Notes Due 2025 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)			16.00%				16.00%
Aggregate principal amount			$ 15,000,000						$ 15,000,000
Proceeds from issuance of 16.00% Notes			$ 14,200,000
Ad Hoc Noteholder Group \| Lender \| Outstanding Notes
Debt Instrument [Line Items]
Risk concentration (as a percent)					85.00%