Accretion of debt discount.

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Amortization period of interest expense.

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- Definition

Debt instrument fundraising costs.

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Debt instrument maturity term.

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Debt instrument onetime cash payment.

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- Definition

Debt instrument percentage of loan funds utilized.

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Escrow deposit disbursements.

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- Definition

Installment period of note.

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Number of equal installments of principal value of note.

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Number of promissory notes.

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Threshold period to review the application.

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

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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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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Amount of the total principal payments made during the annual reporting period.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

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

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

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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

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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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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

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Amount of the required periodic payments including both interest and principal payments.

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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.

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Amount, after accumulated amortization, of debt discount.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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

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Notes Payable - Additional Information (Detail)							1 Months Ended								3 Months Ended			9 Months Ended		12 Months Ended
Notes Payable - Additional Information (Detail)	Oct. 19, 2020	Apr. 16, 2020 USD ($)	Mar. 11, 2020 USD ($)	Sep. 25, 2019 USD ($) Installment	Aug. 15, 2018 USD ($)	Jan. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2020 USD ($)	Feb. 01, 2020 USD ($)	Oct. 31, 2019 USD ($)	May 31, 2019 USD ($) $ / shares shares	Nov. 30, 2018 USD ($) $ / shares shares	Oct. 31, 2018 USD ($) $ / shares shares	Sep. 30, 2018 USD ($) PromissoryNote	Apr. 30, 2018 USD ($)	Oct. 31, 2020 USD ($)	May 02, 2020 USD ($)	Sep. 30, 2019 USD ($)	Oct. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Convertible notes converted into shares of common stock \| shares						57,029
Warrants exercisable into shares of common stock \| shares						57,029
Exercise price of warrants, per share \| $ / shares						$ 91.50
Amortization of debt discount						$ 271,000		$ 2,674,000												$ 3,047,000
Amortization period of interest expense						3 years
Notes payable, outstanding amount							$ 1,800,000	16,359,000							$ 4,848,000		$ 24,200,000	$ 4,848,000	$ 24,200,000	16,359,000
(Loss) gain on debt conversion																		13,642,000	(9,000)
Accretion of discount								373,000										666,000	2,133,000
Interest expense								532,000							35,000		1,335,000	995,000	2,965,000
Derivative liability								2,527,000												1,721,000
Increase decrease in derivative liability								(807,000)										543,000	277,000
CARES Act [Member]
Debt Instrument [Line Items]
Notes payable, maturity date	Apr. 16, 2022
Percentage of loaned funds utilized	100.00%
Threshold period to review the application	90 days
Paycheck Protection Program [Member] \| CARES Act [Member]
Debt Instrument [Line Items]
Notes payable, interest rate		1.00%
Notes payable, issued amount		$ 3,098,000
Notes payable, amount		$ 0
Bank loan maturity term		2 years
Notes Payable [Member]
Debt Instrument [Line Items]
Interest expense								158,000							$ 34,000		1,331,000	$ 325,000	$ 2,960,000
Notes Payable [Member] \| Termination Agreement [Member]
Debt Instrument [Line Items]
Debt instrument, periodic payment			$ 27,929
Notes payable, amount			$ 335,152
Note payable, frequency of periodic payment			twelve equal monthly installments
Notes payable, first monthly installment due date			Apr. 30, 2020
Notes Payable [Member] \| Simply Mac, Inc. [Member]
Debt Instrument [Line Items]
(Loss) gain on debt conversion			$ 6,961,000
Notes payable, onetime cash payment			250,000
Escrow deposit disbursements			$ 345,000
4.02% Promissory Note Due April 2021 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate							6.00%							4.02%
Aggregate principal amount of converted notes to common stock									$ 204,000
Notes payable, outstanding amount									704,000							$ 500,000
Notes payable, issued amount														$ 1,000,000
Notes payable, maturity date														Apr. 30, 2021		Dec. 31, 2020
8% Promissory Notes Due March 2021 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate													8.00%
Notes payable, issued amount													$ 2,107,000
Notes payable, maturity date																			Mar. 31, 2021
Number of promissory notes \| PromissoryNote													12
12% Convertible Notes Due October 2019 [Member]
Debt Instrument [Line Items]
Convertible notes converted into shares of common stock \| shares												94,118
Warrants exercisable into shares of common stock \| shares												47,059
Exercise price of warrants, per share \| $ / shares												$ 42.50
Amortization of debt discount												$ 1,942,000
Amortization period of interest expense												1 year
Notes payable, outstanding amount								$ 1,775,000												$ 1,775,000
12% Convertible Notes Due October 2019 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate								12.00%							12.00%			12.00%		12.00%
Notes payable, maturity date								Oct. 31, 2019										Oct. 31, 2019		Oct. 31, 2019
12% Convertible Notes Due November 2019 [Member]
Debt Instrument [Line Items]
Convertible notes converted into shares of common stock \| shares											27,727
Warrants exercisable into shares of common stock \| shares											13,864
Exercise price of warrants, per share \| $ / shares											$ 44.00
Amortization of debt discount											$ 118,000
Amortization period of interest expense											1 year
Aggregate principal amount of converted notes to common stock									820,000
Notes payable, outstanding amount								$ 400,000	400,000											$ 400,000
(Loss) gain on debt conversion									(5,000)
Accretion of discount																			$ 88,000
12% Convertible Notes Due November 2019 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate								12.00%							12.00%			12.00%		12.00%
Notes payable, maturity date								Nov. 30, 2019										Nov. 30, 2019		Nov. 30, 2019
12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
Convertible notes converted into shares of common stock \| shares										125,900
Warrants exercisable into shares of common stock \| shares										62,950
Exercise price of warrants, per share \| $ / shares										$ 27.20
Amortization of debt discount										$ 940,000
Amortization period of interest expense										1 year
Notes payable, outstanding amount								$ 1,500,000												$ 1,500,000
Accretion of discount																	235,000		352,000
12% Convertible Notes Due May 2020 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate								12.00%							12.00%			12.00%		12.00%
Notes payable, maturity date								May 31, 2020										May 31, 2020		May 31, 2020
12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Warrants value									3,586,000
Amortization of debt discount																$ 4,368,000	$ 4,368,000		4,368,000
Amortization period of interest expense																	1 year
Aggregate principal amount of converted notes to common stock																	$ 316,000
Notes payable, outstanding amount								$ 4,235,000									4,235,000		4,235,000	$ 4,235,000
(Loss) gain on debt conversion																	(190,000)
Accretion of discount								339,000										$ 605,000
12% Secured Promissory Note Due September 2020 [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount								$ 7,858,000												$ 7,858,000
12% Secured Promissory Note Due September 2020 [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate								12.00%							12.00%			12.00%		12.00%
Notes payable, maturity date								Sep. 30, 2020										Sep. 30, 2020		Sep. 30, 2020
12% Secured Promissory Note Due September 2020 [Member] \| Notes Payable [Member] \| Simply Mac, Inc. [Member]
Debt Instrument [Line Items]
Notes payable, interest rate				12.00%
Notes payable, outstanding amount				$ 7,858,000
Notes payable, issued amount				7,858,000
Debt instrument, periodic payment				$ 1,965,000
Number of equal installments of principal value of note \| Installment				4
Installment period of note				3 months
Amended Promissory Note [Member] \| Notes Payable [Member] \| Simply Mac, Inc. [Member]
Debt Instrument [Line Items]
Notes payable, interest rate			6.00%
Notes payable, outstanding amount			$ 1,250,000
Notes payable, maturity date			Feb. 17, 2024
Interest Expense [Member] \| 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
(Loss) gain on debt conversion																	1,946,000
Other Income (Expense) [Member] \| 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Increase decrease in derivative liability								$ (806,000)										$ 543,000
Valuation, Market Approach [Member] \| 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Derivative liability																$ 7,954,000
Convertible Notes and Warrants [Member]
Debt Instrument [Line Items]
Convertible notes amount						$ 1,000,000
Convertible notes term						3 years
Notes payable, interest rate						0.00%
Warrants value						$ 127,000
Conversion feature value						144,000
Debt value						$ 729,000
Aggregate principal amount of converted notes to common stock					$ 725,000		$ 91,000		184,000
Notes payable, outstanding amount					$ 275,000				91,000
Accretion of discount																	6,000	$ 1,000	18,000
Convertible Notes and Warrants [Member] \| 12% Convertible Notes Due October 2019 [Member]
Debt Instrument [Line Items]
Convertible notes amount												$ 4,000,000
Convertible notes term												1 year
Notes payable, interest rate												12.00%			6.00%			6.00%
Warrants value												$ 769,000
Conversion feature value												1,173,000
Debt value												$ 2,058,000
Aggregate principal amount of converted notes to common stock									2,225,000									$ 1,700,000
Notes payable, outstanding amount									1,775,000						$ 75,000			$ 75,000
(Loss) gain on debt conversion									(8,000)
Accretion of discount																	485,000		1,456,000
Notes payable, maturity date																		Jun. 30, 2020
Convertible Notes and Warrants [Member] \| 12% Convertible Notes Due November 2019 [Member]
Debt Instrument [Line Items]
Convertible notes amount											$ 1,220,000
Convertible notes term											1 year
Notes payable, interest rate											12.00%
Warrants value											$ 118,000
Debt value											$ 1,102,000
Accretion of discount																	29,000
Convertible Notes and Warrants [Member] \| 12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
Convertible notes amount										$ 3,500,000
Convertible notes term										1 year
Notes payable, interest rate										12.00%
Warrants value										$ 507,000
Conversion feature value										243,000
Debt value										2,750,000
Aggregate principal amount of converted notes to common stock										2,000,000
Notes payable, outstanding amount										1,500,000
(Loss) gain on debt conversion										57,000
Accretion of discount																		$ 60,000
Fundraising costs										190,000
Convertible Notes and Warrants [Member] \| 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Convertible notes amount																	$ 4,551,000		$ 4,551,000
Convertible notes term																	1 year
Notes payable, interest rate																	12.00%		12.00%
Warrants value																	$ 1,897,000		$ 1,897,000
Conversion feature value																	2,471,000
Debt value																	$ 182,000		$ 182,000
Convertible Notes and Warrants [Member] \| Interest Expense [Member]
Debt Instrument [Line Items]
(Loss) gain on debt conversion							$ 5,000		$ (15,000)
Convertible Notes and Warrants [Member] \| Interest Expense [Member] \| 12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
(Loss) gain on debt conversion										$ (304,000)
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member]
Debt Instrument [Line Items]
Fair value assumption						105
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member] \| 12% Convertible Notes Due October 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption												90
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member] \| 12% Convertible Notes Due November 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption											90
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member] \| 12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption										105
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Debt Instrument [Line Items]
Fair value assumption						2.20
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| 12% Convertible Notes Due October 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption												2.47
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| 12% Convertible Notes Due November 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption											2.52
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| 12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption										2.33
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Entity Credit Risk [Member]
Debt Instrument [Line Items]
Fair value assumption						7.70
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Discount Rate [Member] \| 12% Convertible Notes Due October 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption												25
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Discount Rate [Member] \| 12% Convertible Notes Due November 2019 [Member]
Debt Instrument [Line Items]
Fair value assumption											25
Warrants [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Discount Rate [Member] \| 12% Convertible Notes Due May 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption										30
Warrants [Member] \| Convertible Notes [Member] \| Valuation Technique, Option Pricing Model [Member] \| Measurement Input, Price Volatility [Member] \| 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption																	70		70
Warrants [Member] \| Convertible Notes [Member] \| Valuation, Market Approach [Member] \| Measurement Input, Exercise Price [Member] \| Certain Portion of 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption																	20		20
Warrants [Member] \| Convertible Notes [Member] \| Valuation, Market Approach [Member] \| Measurement Input, Exercise Price [Member] \| Other Portion of 12% Convertible Notes Due July, August and September 2020 [Member]
Debt Instrument [Line Items]
Fair value assumption																	30		30