Debt Conversion, Converted Instrument, Lowest Daily Volume Weighted Average Price

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Debt Conversion, Converted Instrument, Lowest Daily Volume Weighted Average Price, Period

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Debt Instrument, Additional Premium Percentage To Be Paid

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Debt Instrument, Convertible, Gain (Loss) on Beneficial Conversion Feature

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Debt Instrument, Convertible, Number Of Trading Days Prior To Redemption Notice

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Debt Instrument, Discount Rate Percentage

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Debt Instrument , Early Repayment Penalty, Percentage

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Debt Instrument, Interest Rate, Paid-In-Kind, Stated Percentage

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Debt Instrument, Minimum Prepayment Amount

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Debt Instrument Payment Premium Rate

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- Definition

Debt Instrument, Stated Interest Rate In The Event of Default

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Debt Instrument Maturity, Number Of Days Prior To Current Maturity Date

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Maximum Borrowing Capacity, Principal Amount Per Loan

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Number Of Immediately Following Interest Payment Required To Be Escrowed

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Number Of Investor Notices Delivered

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Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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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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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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

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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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Amount of the required periodic payments applied to principal.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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

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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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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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

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Borrowings - Narrative (Details)						1 Months Ended			2 Months Ended	3 Months Ended		12 Months Ended
Borrowings - Narrative (Details)	Dec. 29, 2022 USD ($) trading_day tradingDay $ / shares	Jul. 29, 2022 USD ($) interest_payment	Jun. 13, 2022 USD ($) $ / shares	Jul. 06, 2021 USD ($) trading_day $ / shares	Apr. 09, 2021 USD ($)	May 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	May 31, 2021 USD ($)	Aug. 31, 2022 notice $ / shares shares	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 07, 2022 USD ($)	Aug. 04, 2022 USD ($)
Debt Instrument [Line Items]
Principal										$ 219,744,000		$ 219,744,000	$ 129,289,000
Gain on change in fair value of derivatives												11,728,000	19,282,000
Fair value of december 2022 promissory note at issuance										175,831,000		175,831,000	109,214,000
Issuance of convertible notes for interest paid-in-kind												6,267,000	2,900,000
Long-term debt, current										2,872,000		2,872,000	1,644,000
Amount due at closing												0	160,000
(Loss) gain on debt (extinguishment)/forgiveness												$ (942,000)	$ 1,273,000
Hi-Power
Debt Instrument [Line Items]
Aggregate purchase price					$ 25,000,000
Amount due at closing						$ 5,000,000		$ 5,000,000
(Loss) gain on debt (extinguishment)/forgiveness											$ 942,000
December 2022 Promissory Note
Debt Instrument [Line Items]
Embedded derivative liability	$ 419,000
Fair value of december 2022 promissory note at issuance	2,299,000
2021 Convertible Senior Notes
Debt Instrument [Line Items]
Number of shares issuable if converted \| shares												5,457,348	5,144,074
Senior Secured Term Loan \| Secured Overnight Financing Rate (SOFR) \| Minimum
Debt Instrument [Line Items]
Variable rate spread		0.2616%
Senior Secured Term Loan \| Federal Reserve Bank of New York Financing Rate (NYFRB) \| Minimum
Debt Instrument [Line Items]
Variable rate spread		0.50%
Equipment financing facility
Debt Instrument [Line Items]
Remaining borrowing capacity											13,784,000
Long-term line of credit										8,577,000		$ 8,577,000	$ 6,371,000
Long-term debt, current										2,872,000		2,872,000	1,644,000
Interest accretion and amortization of debt issuance costs												922,000	157,000
Convertible Debt \| June 2022 Promissory Note
Debt Instrument [Line Items]
Principal amount			$ 7,500,000
Original issue discount			2.00%
Debt issuance costs	125,000
Interest rate in the event of default			15.00%
Conversion price per unit (in usd per share) \| $ / shares			$ 2.21						$ 2.21
Number of investor notices \| notice									6
Issue and sale of shares (in shares) \| shares									3,393,663
Interest expense												309,000
Principal										0		0
Convertible Debt \| December 2022 Promissory Note
Debt Instrument [Line Items]
Principal amount	$ 2,000,000
Original issue discount	2.00%
Debt issuance costs	$ 179,000
Interest rate in the event of default	15.00%
Conversion price per unit (in usd per share) \| $ / shares	$ 1.1779
Principal										2,000,000		2,000,000
Stated interest rate	5.00%
Lowest daily volume weighted average price	96.50%
Number of trading days \| trading_day	7
Consecutive trading days \| trading_day	5
Payment of principal due	$ 1,000,000
Payment premium	3.00%
Number of trading days prior to redemption notice \| tradingDay	10
Embedded derivative liability										1,027,000		1,027,000
Gain on change in fair value of derivatives												(608,000)
Fair value of december 2022 promissory note at issuance										2,688,000		2,688,000
Convertible Debt \| 2021 Convertible Notes
Debt Instrument [Line Items]
Principal amount				$ 100,000,000
Original issue discount				5000.00%
Conversion price per unit (in usd per share) \| $ / shares				$ 20
Principal										109,167,000		109,167,000	102,900,000
Stated interest rate				5.00%
Consecutive trading days \| trading_day				30
Embedded derivative liability										918,000		918,000	12,359,000
Fair value of december 2022 promissory note at issuance										82,950,000		82,950,000	84,148,000
Conversion ratio				49.9910
Percentage of stock price				130.00%
Threshold trading days \| trading_day				20
Redemption percentage				100.00%
Gain (loss) on beneficial conversion feature												11,488,000	17,507,000
Issuance of convertible notes for interest paid-in-kind												6,267,000
Paid-in-kind interest rate				6.00%
Interest accretion and amortization of debt issuance costs										10,243,000			4,597,000
Secured Debt \| Senior Secured Term Loan
Debt Instrument [Line Items]
Principal amount		$ 100,000,000
Debt issuance costs		885,000
Principal		$ 85,106,000								100,000,000		100,000,000	0	$ 5,320,000	$ 9,574,000
Fair value of december 2022 promissory note at issuance										81,616,000		81,616,000	0
Number of days prior to current maturity date		91 days
Minimum prepayment amount		$ 500,000
Repayment applicable treasury rate		0.50%
Number of immediately following interest payment required to be escrowed		4
Escrowed interest										11,422,000		11,422,000
Maximum borrowing capacity, principal amount per loan		$ 15,000,000
Debt issuance fees		2,008,000
Accrued insurance		$ 16,953,000
Interest accretion and amortization of debt issuance costs												6,349,000
Secured Debt \| Senior Secured Term Loan \| Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Additional insurance premiums		3.00%
Secured Debt \| Senior Secured Term Loan \| Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Additional insurance premiums		3.00%
Secured Debt \| Senior Secured Term Loan \| Debt Instrument, Redemption, Period Three
Debt Instrument [Line Items]
Additional insurance premiums		2.00%
SOFR Loans \| Senior Secured Term Loan
Debt Instrument [Line Items]
Variable rate spread		8.50%
ABR Loans \| Senior Secured Term Loan
Debt Instrument [Line Items]
Stated interest rate		7.50%
Line of Credit \| Equipment financing facility
Debt Instrument [Line Items]
Debt issuance costs							$ 175,000			271,000	$ 96,000	271,000
Principal										8,577,000		8,577,000	6,389,000
Fair value of december 2022 promissory note at issuance										8,577,000		8,577,000	6,371,000
Maximum borrowing capacity							25,000
Commitment fee amount							$ 188,000
Note payable- Hi-Power \| Note Payable - High Power
Debt Instrument [Line Items]
Principal										0		0	20,000,000
Fair value of december 2022 promissory note at issuance										$ 0		0	18,695,000
Current portion of notes payable													4,926,000
Long-term portion													$ 13,769,000
(Loss) gain on debt (extinguishment)/forgiveness												$ (942,000)