The percentage of beneficial ownership if effective upon the applicable conversion date of debt instrument.

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The period for outstanding balance of accounts receivable has not recorded an allowance for doubtful accounts pledged under the debt instrument conversion features, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

The maximum amount of indebtedness subordinated by security interest and cash payment rights under the convertible debt instruments.

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No definition available.

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- Definition

Debt instrument convertible number of shares of common stock.

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No definition available.

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- Definition

Represents the minimum beneficial ownership percentage which triggers, at the election of the holders, redemption of the notes.

+ References

No definition available.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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- Definition

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

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- Definition

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

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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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Amount of the required periodic payments applied to interest.

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Percentage of principal amount of debt redeemed.

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No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Notes Payable - Additional Information (Details) - USD ($)				1 Months Ended						12 Months Ended
	May 07, 2020	Feb. 18, 2018	Feb. 17, 2018	Aug. 31, 2020	Feb. 29, 2020	Aug. 31, 2019	Feb. 28, 2019	Oct. 31, 2018	Mar. 31, 2016	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Interest expense										$ 243,000	$ 220,000
Senior Secured Convertible Notes due August 15, 2018
Debt Instrument [Line Items]
Stated interest rate								8.00%	10.00%
Principal amount									$ 8,000,000
Redemption purchase price		100.00%	120.00%
Minimum ownership percentage triggering event for redemption of notes									40.00%
Maximum amount of indebtedness subordinated by security interest and cash payment rights under debt instruments									$ 5,000,000
Payment on principle amount of note								$ 7,400,000
Senior Secured Convertible Notes due August 15, 2018 \| Contractual obligations and other termination costs
Debt Instrument [Line Items]
Debt issuance costs									$ 100,000
Senior Secured Convertible Notes due August 15, 2018 \| Minimum
Debt Instrument [Line Items]
Percentage of beneficial ownership if effective upon conversion date of debt instrument									19.90%
Senior Secured Convertible Notes due August 15, 2018 \| Maximum
Debt Instrument [Line Items]
Period for outstanding balance of accounts receivable has not recorded an allowance for doubtful accounts									90 days
Senior Secured Convertible Notes due August 15, 2023
Debt Instrument [Line Items]
Conversion price								$ 11.434	$ 170.00
Interest Note
Debt Instrument [Line Items]
Conversion price										$ 11.434
Number of shares issuable if notes converted to shares of common stock										271,121
Semi-annual interest payments				$ 122,000	$ 112,000	$ 109,000	$ 78,000
Promissory Note \| PPP Note
Debt Instrument [Line Items]
Stated interest rate	1.00%
Principal amount	$ 579,330,000
Debt instrument term	2 years
Monthly payment beginning date	Oct. 31, 2021