$GWH
ESS Tech, Inc. Stock $gwh

$gwh Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000162828024011004 Filed on March 14, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$2.738M	$2.796M	$7.540M
YoY Change	636.02%	17375.0%	743.4%
Cost Of Revenue	$11.13M	$10.31M	$20.50M
YoY Change
Gross Profit	-$8.388M	-$7.516M	-$12.96M
YoY Change	-2354.84%		-1549.11%
Gross Profit Margin	-306.36%	-268.81%	-171.82%
Selling, General & Admin	$7.560M	$7.707M	$30.32M
YoY Change	5.9%	-10.62%	-11.88%
% of Gross Profit
Research & Development	$3.546M	$3.842M	$42.63M
YoY Change	-80.0%	-83.14%	-40.77%
% of Gross Profit
Depreciation & Amortization	$1.219M	$3.326M	$6.513M
YoY Change	13.18%	378.56%	327.64%
% of Gross Profit
Operating Expenses	$11.11M	$11.55M	$72.95M
YoY Change	-55.35%	-63.23%	-31.43%
Operating Profit	-$19.49M	-$19.07M	-$85.90M
YoY Change	-20.43%		-18.57%
Interest Expense		$2.900M	$7.554M
YoY Change		144.11%	245.4%
% of Operating Profit
Other Income/Expense, Net	$1.184M	$35.00K	$773.0K
YoY Change	-54.43%	-99.32%	-97.19%
Pretax Income		-$16.13M	-$77.58M
YoY Change		-35.67%	-0.5%
Income Tax	$0.00
% Of Pretax Income
Net Earnings	-$18.31M	-$16.13M	-$77.58M
YoY Change	-16.4%	-35.67%	-0.5%
Net Earnings / Revenue	-668.74%	-576.9%	-1028.89%
Basic Earnings Per Share	-$0.10		-$0.48
Diluted Earnings Per Share	-$0.10	-$0.09	-$0.49
COMMON SHARES
Basic Shares Outstanding	174.9M shares	173.0M shares	160.0M shares
Diluted Shares Outstanding	174.5M shares		160.0M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments		$108.1M	$108.1M
YoY Change		-22.71%	-22.71%
Cash & Equivalents	$36.33M	$20.17M	$20.17M
Short-Term Investments		$87.90M	$87.90M
Other Short-Term Assets		$3.601M	$3.601M
YoY Change		-47.58%	-47.58%
Inventory	$3.161M	$3.366M	$3.366M
Prepaid Expenses
Receivables	$1.039M	$2.243M	$2.243M
Other Receivables		$824.0K	$824.0K
Total Short-Term Assets	$98.25M	$118.1M	$118.1M
YoY Change	-21.44%	-22.12%	-22.12%
LONG-TERM ASSETS
Property, Plant & Equipment	$16.93M	$18.43M	$18.43M
YoY Change	-7.86%	4.91%	-12.1%
Goodwill
YoY Change
Intangibles	$4.857M	$4.923M
YoY Change
Long-Term Investments
YoY Change
Other Assets	$816.0K	$1.778M	$1.778M
YoY Change	241.42%	556.09%	87.95%
Total Long-Term Assets	$25.39M	$25.13M	$25.13M
YoY Change	13.39%	14.68%	14.68%
TOTAL ASSETS
Total Short-Term Assets	$98.25M	$118.1M	$118.1M
Total Long-Term Assets	$25.39M	$25.13M	$25.13M
Total Assets	$123.6M	$143.2M	$143.2M
YoY Change	-16.15%	-17.47%	-17.47%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.910M	$2.755M	$2.755M
YoY Change	7.82%	-9.26%	-9.26%
Accrued Expenses		$13.79M	$13.79M
YoY Change		-12.63%	-12.63%
Deferred Revenue	$5.600M	$2.500M
YoY Change	-5.55%	-59.47%
Short-Term Debt		$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Total Short-Term Liabilities	$19.89M	$19.77M	$19.77M
YoY Change	-13.61%	-29.39%	-29.39%
LONG-TERM LIABILITIES
Long-Term Debt		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Other Long-Term Liabilities		$20.11M	$20.11M
YoY Change		23557.65%	143.13%
Total Long-Term Liabilities		$20.11M	$20.11M
YoY Change		4927.25%	134.21%
TOTAL LIABILITIES
Total Short-Term Liabilities	$19.89M	$19.77M	$19.77M
Total Long-Term Liabilities		$20.11M	$20.11M
Total Liabilities	$35.81M	$39.88M	$39.88M
YoY Change	18.53%	9.01%	9.01%
SHAREHOLDERS EQUITY
Retained Earnings	-$714.5M	-$696.2M
YoY Change	11.55%	12.54%
Common Stock	$18.00K	$18.00K
YoY Change	12.5%	12.5%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$87.82M	$103.4M	$103.4M
YoY Change
Total Liabilities & Shareholders Equity	$123.6M	$143.2M	$143.2M
YoY Change	-16.15%	-17.47%	-17.47%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	-$18.31M	-$16.13M	-$77.58M
YoY Change	-16.4%	-35.67%	-0.5%
Depreciation, Depletion And Amortization	$1.219M	$3.326M	$6.513M
YoY Change	13.18%	378.56%	327.64%
Cash From Operating Activities	-$18.91M	-$16.15M	-$54.90M
YoY Change	2.16%	-35.42%	-32.74%
INVESTING ACTIVITIES
Capital Expenditures	$953.0K	$1.581M	$5.790M
YoY Change	-63.49%	-47.19%	-59.17%
Acquisitions
YoY Change
Other Investing Activities		$653.0K	$20.86M
YoY Change		-96.7%	-120.12%
Cash From Investing Activities	$34.69M	-$928.0K	$15.07M
YoY Change	-51.86%	-105.53%	-112.78%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$27.60M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$81.00K	65.00K	25.65M
YoY Change	-73.27%	-56.08%	-729.83%
NET CHANGE
Cash From Operating Activities	-$18.91M	-16.15M	-54.90M
Cash From Investing Activities	$34.69M	-928.0K	15.07M
Cash From Financing Activities	-$81.00K	65.00K	25.65M
Net Change In Cash	$15.70M	-17.01M	-14.17M
YoY Change	-70.51%	110.42%	-93.04%
FREE CASH FLOW
Cash From Operating Activities	-$18.91M	-$16.15M	-$54.90M
Capital Expenditures	$953.0K	$1.581M	$5.790M
Free Cash Flow	-$19.86M	-$17.73M	-$60.69M
YoY Change	-5.95%	-36.68%	-36.65%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-2292000	usd
CY2022	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-25788000	usd
CY2023	us-gaap	Gross Profit GrossProfit	-12955000	usd
CY2022	us-gaap	Gross Profit GrossProfit	894000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	71979000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001819438
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	us-gaap	Government Assistance Statement Of Income Or Comprehensive Income Extensible Enumeration GovernmentAssistanceStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#CostOfRevenue
CY2023Q4	us-gaap	Government Assistance Current Statement Of Financial Position Extensible Enumeration GovernmentAssistanceCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#PrepaidExpenseAndOtherAssetsCurrent
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-39525
CY2023	dei	Entity Registrant Name EntityRegistrantName	ESS Tech, Inc.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-1550150
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	26440 SW Parkway Ave.
CY2023	dei	Entity Address Address Line2 EntityAddressAddressLine2	Bldg. 83
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Wilsonville
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	OR
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	97070
CY2023	dei	City Area Code CityAreaCode	855
CY2023	dei	Local Phone Number LocalPhoneNumber	423-9920
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	true
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
CY2023	dei	Entity Ex Transition Period EntityExTransitionPeriod	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	true
CY2023	dei	Document Fin Stmt Restatement Recovery Analysis Flag DocumentFinStmtRestatementRecoveryAnalysisFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	111900000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	174898086	shares
CY2023	dei	Auditor Name AuditorName	KPMG LLP
CY2023	dei	Auditor Location AuditorLocation	Portland, Oregon
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20165000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	34767000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1373000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1213000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1990000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4952000	usd
CY2023Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	87899000	usd
CY2022Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	105047000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	3366000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	0	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3305000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5657000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	118098000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	151636000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	16266000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17570000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4923000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	0	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2167000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3401000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	945000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	675000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	833000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	271000	usd
CY2023Q4	us-gaap	Assets Assets	143232000	usd
CY2022Q4	us-gaap	Assets Assets	173553000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2755000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	3036000	usd
CY2023Q4	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	10755000	usd
CY2022Q4	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	14125000	usd
CY2023Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2129000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	1643000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1581000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1421000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	2546000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	6168000	usd
CY2023Q4	us-gaap	Notes Payable Current NotesPayableCurrent	0	usd
CY2022Q4	us-gaap	Notes Payable Current NotesPayableCurrent	1600000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	19766000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	27993000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	315000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	957000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2535000	usd
CY2023Q4	ghw	Common Stock Warrant Liabilities CommonStockWarrantLiabilities	917000	usd
CY2022Q4	ghw	Common Stock Warrant Liabilities CommonStockWarrantLiabilities	3209000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	0	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	85000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	39875000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	36579000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	174211911	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	174211911	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	153821339	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153821339	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	18000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	16000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	799496000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	755537000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-696157000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-618579000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	103357000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	136974000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	143232000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	173553000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7540000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	894000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	20495000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	0	usd
CY2023	us-gaap	Operating Expenses OperatingExpenses	72950000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	-85905000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-105492000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	5262000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2187000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	773000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-452000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	8327000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	27523000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-77578000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-77578000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-77969000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-77969000	usd
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.48
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.48
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.51
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.51
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159958645	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159958645	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152676155	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	152676155	shares
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	205159000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	657000	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2808000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	46000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11889000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-77969000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	136974000	usd
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	468000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10635000	usd
CY2023	ghw	Sale Of Stock Issuance Costs SaleOfStockIssuanceCosts	368000	usd
CY2023	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	32858000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-77578000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	103357000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-77578000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-77969000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6513000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1523000	usd
CY2023	ghw	Non Cash Interest Income NonCashInterestIncome	-3635000	usd
CY2022	ghw	Non Cash Interest Income NonCashInterestIncome	-1349000	usd
CY2023	ghw	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	1234000	usd
CY2022	ghw	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	1134000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	10635000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	11889000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	11932000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2023	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-2292000	usd
CY2022	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-25788000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	60000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-483000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3633000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1886000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	14661000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	0	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2422000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	311000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-229000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1464000	usd
CY2023	ghw	Increase Decrease In Accrued Liabilities And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherCurrentLiabilities	-3378000	usd
CY2022	ghw	Increase Decrease In Accrued Liabilities And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherCurrentLiabilities	6789000	usd
CY2023	ghw	Increase Decrease In Product Warranty Accrual IncreaseDecreaseInProductWarrantyAccrual	486000	usd
CY2022	ghw	Increase Decrease In Product Warranty Accrual IncreaseDecreaseInProductWarrantyAccrual	1643000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	11500000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1881000	usd
CY2023	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-1418000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-1123000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-54896000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-81620000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5790000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	14180000	usd
CY2023	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-20861000	usd
CY2022	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	103704000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	15071000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-117884000	usd
CY2023	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	27132000	usd
CY2022	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	usd
CY2023	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1733000	usd
CY2022	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1900000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	237000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	310000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2808000	usd
CY2023	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	541000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	492000	usd
CY2023	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	usd
CY2022	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	165000	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-214000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-22000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	25653000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4073000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-14172000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-203577000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36655000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	240232000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22483000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36655000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	1670000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	1625000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	154000	usd
CY2023	ghw	Common Stock Warrants Issued For The Acquisition Of Intangible Assets CommonStockWarrantsIssuedForTheAcquisitionOfIntangibleAssets	4990000	usd
CY2022	ghw	Common Stock Warrants Issued For The Acquisition Of Intangible Assets CommonStockWarrantsIssuedForTheAcquisitionOfIntangibleAssets	0	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	704000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1358000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4534000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	123000	usd
CY2023	ghw	Warrant Vested Under Contracts With Customers WarrantVestedUnderContractsWithCustomers	0	usd
CY2022	ghw	Warrant Vested Under Contracts With Customers WarrantVestedUnderContractsWithCustomers	46000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20165000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	34767000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1373000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1213000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	945000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	675000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22483000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36655000	usd
CY2023	ghw	Battery Flexible Energy Capacity Minimum BatteryFlexibleEnergyCapacityMinimum	4	h
CY2022	ghw	Inventory Write Down Net Realizable Value InventoryWriteDownNetRealizableValue	0	usd
CY2023	us-gaap	Inventory Firm Purchase Commitment Loss InventoryFirmPurchaseCommitmentLoss	637000	usd
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:6pt;padding-left:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentration of Credit Risk</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and cash equivalents and restricted cash. The Company’s cash and cash equivalents include cash in bank accounts, money market funds, and investments with a maturity of three months or less at the date of purchase. The Company’s restricted cash includes a certificate of deposit, collateral associated with a standby letter of credit, and a performance and payment bond. Deposits held with banks may exceed the amount of insurance provided on such deposits.</span></div>
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt;padding-left:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of commitments and contingencies as of the date of the financial statements and the reported amounts of expenses during the reporting periods. Such estimates relate to, but are not limited to, inventory valuation, product warranty liabilities, standalone selling prices, the fair value of the Company’s investments and warrant liabilities, the </span></div>useful lives and assessment of recoverability of property and equipment, deferred tax assets valuation, as well as other accruals. These estimates are based on historical trends, market pricing, current events and other relevant assumptions and data points. Actual results could differ from those estimates and such differences may be material to the financial statements.
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-top:6pt;padding-left:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassifications</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—Certain prior year amounts have been reclassified to conform with current year presentation. These reclassifications had no effect on the reported results of operations.</span></div>
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17570000	usd
CY2023	us-gaap	Depreciation Depreciation	6400000	usd
CY2022	us-gaap	Depreciation Depreciation	1500000	usd
CY2022Q4	ghw	Research And Development Grant Refund Liability Current ResearchAndDevelopmentGrantRefundLiabilityCurrent	452000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2023Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	7740000	usd
CY2022Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	0	usd
CY2023Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1236000	usd
CY2022Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	0	usd
CY2023Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	5685000	usd
CY2022Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	0	usd
CY2023Q4	us-gaap	Inventory Gross InventoryGross	14661000	usd
CY2022Q4	us-gaap	Inventory Gross InventoryGross	0	usd
CY2023Q4	us-gaap	Inventory Adjustments InventoryAdjustments	11295000	usd
CY2022Q4	us-gaap	Inventory Adjustments InventoryAdjustments	0	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	3366000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	0	usd
CY2023	ghw	Inventory Write Down Net Realizable Value InventoryWriteDownNetRealizableValue	11300000	usd
CY2023Q4	us-gaap	Prepaid Insurance PrepaidInsurance	521000	usd
CY2022Q4	us-gaap	Prepaid Insurance PrepaidInsurance	2033000	usd
CY2023Q4	us-gaap	Supplies Supplies	936000	usd
CY2022Q4	us-gaap	Supplies Supplies	3147000	usd
CY2023Q4	us-gaap	Grants Receivable Current GrantsReceivableCurrent	824000	usd
CY2022Q4	us-gaap	Grants Receivable Current GrantsReceivableCurrent	0	usd
CY2023Q4	ghw	Prepaid Information Technology Related Current PrepaidInformationTechnologyRelatedCurrent	401000	usd
CY2022Q4	ghw	Prepaid Information Technology Related Current PrepaidInformationTechnologyRelatedCurrent	390000	usd
CY2023Q4	ghw	Prepaid Contract Assets Current PrepaidContractAssetsCurrent	253000	usd
CY2022Q4	ghw	Prepaid Contract Assets Current PrepaidContractAssetsCurrent	0	usd
CY2023Q4	ghw	Other Prepaid Expense And Other Assets Current OtherPrepaidExpenseAndOtherAssetsCurrent	370000	usd
CY2022Q4	ghw	Other Prepaid Expense And Other Assets Current OtherPrepaidExpenseAndOtherAssetsCurrent	87000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3305000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5657000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	25547000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	20411000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9281000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2841000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	16266000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	67000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	67000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	0	usd
CY2023Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	4923000	usd
CY2022Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	267000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	267000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	267000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	267000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	267000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3588000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4923000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	1500000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	5681000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2948000	usd
CY2023Q4	ghw	Materials And Related Purchases Current MaterialsAndRelatedPurchasesCurrent	2083000	usd
CY2022Q4	ghw	Materials And Related Purchases Current MaterialsAndRelatedPurchasesCurrent	6892000	usd
CY2023Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	802000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1011000	usd
CY2023Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	545000	usd
CY2022Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	770000	usd
CY2023Q4	ghw	Accrued Capital Expenditures AccruedCapitalExpenditures	327000	usd
CY2022Q4	ghw	Accrued Capital Expenditures AccruedCapitalExpenditures	1093000	usd
CY2023Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	637000	usd
CY2022Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	0	usd
CY2023Q4	ghw	Other Accrued Liability And Other Liabilities Current OtherAccruedLiabilityAndOtherLiabilitiesCurrent	680000	usd
CY2022Q4	ghw	Other Accrued Liability And Other Liabilities Current OtherAccruedLiabilityAndOtherLiabilitiesCurrent	1411000	usd
CY2023Q4	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	10755000	usd
CY2022Q4	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	14125000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	3412000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	2612000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1416000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	969000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-1510000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	0	usd
CY2023Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2129000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	1643000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P60M
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	1500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1720000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	983000	usd
CY2023Q4	ghw	Lessee Operating Lease Liability To Be Paid After Year Three LesseeOperatingLeaseLiabilityToBePaidAfterYearThree	0	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	2703000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	165000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	2538000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y8M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.075
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.075
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	0	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1915000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1600000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	315000	usd
CY2022Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	75000	usd
CY2022Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	75000	usd
CY2023Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	29151075	shares
CY2022Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	11473727	shares
CY2022Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	11473727	shares
CY2023	ghw	Class Of Warrant Or Right Grants In Period ClassOfWarrantOrRightGrantsInPeriod	17677348	shares
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	26000000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y9M3D
CY2023	ghw	Class Of Warrant Or Right Exercises In Period ClassOfWarrantOrRightExercisesInPeriod	0	shares
CY2023	ghw	Class Of Warrant Or Right Converted In Period ClassOfWarrantOrRightConvertedInPeriod	0	shares
CY2023Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	29151075	shares
CY2023	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	1
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	12500	shares
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10635000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11889000	usd
CY2023Q4	ghw	Share Based Compensation Arrangement By Share Based Payment Awards Potential Increase In Shares Authorized Percentage Of Shares Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardsPotentialIncreaseInSharesAuthorizedPercentageOfSharesOutstanding	0.05
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3223109	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.01
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y4M20D
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4583000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	378110	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	1.51
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	703550	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0.34
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	299287	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.46
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2598382	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.33
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y3M
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1422000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1947123	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	0.76
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P7Y21D
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	3244000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1775256	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	1.10
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P5Y7M13D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	1198000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	900000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2100000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.019
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.002
CY2023	ghw	Effective Income Tax Rate Reconciliation Nondeductible Expense Officer Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent	0.008
CY2022	ghw	Effective Income Tax Rate Reconciliation Nondeductible Expense Officer Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent	-0.014
CY2023	ghw	Effective Income Tax Rate Reconciliation Change Warrant Liability Percent EffectiveIncomeTaxRateReconciliationChangeWarrantLiabilityPercent	0.006
CY2022	ghw	Effective Income Tax Rate Reconciliation Change Warrant Liability Percent EffectiveIncomeTaxRateReconciliationChangeWarrantLiabilityPercent	0.066
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	46616000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	34454000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1454000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	909000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1560000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	737000	usd
CY2023Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	19644000	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	16946000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	3159000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	0	usd
CY2023Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	1002000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	0	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2761000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2153000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	76196000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	55199000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	75590000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	54261000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	606000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	938000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	606000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	938000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	16900000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	21300000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.068
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.072
CY2023	ghw	Effective Income Tax Rate Reconciliation Change Earnout Liability Percent EffectiveIncomeTaxRateReconciliationChangeEarnoutLiabilityPercent	0
CY2022	ghw	Effective Income Tax Rate Reconciliation Change Earnout Liability Percent EffectiveIncomeTaxRateReconciliationChangeEarnoutLiabilityPercent	0.004
CY2023	ghw	Effective Income Tax Rate Reconciliation Permanent Differences Percent EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent	-0.001
CY2022	ghw	Effective Income Tax Rate Reconciliation Permanent Differences Percent EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent	0.001
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.005
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.008
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.276
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.346
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	292000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	613000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	905000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	170000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	382000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1457000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	382000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	613000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7540000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	894000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	253000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	11000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	20781000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	8610000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	242000	usd
CY2023	ghw	Contract With Customer Liability Period Increase Decrease ContractWithCustomerLiabilityPeriodIncreaseDecrease	12200000	usd
CY2023	ghw	Contract With Customer Liability Advance Payment ContractWithCustomerLiabilityAdvancePayment	19000000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6300000	usd
CY2023	ghw	Contract With Customer Liability Deposits Returned To Customers ContractWithCustomerLiabilityDepositsReturnedToCustomers	-506000	usd
CY2023	ghw	Contract With Customer Liability Change In Estimate Of Variable Consideration ContractWithCustomerLiabilityChangeInEstimateOfVariableConsideration	-244000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	2500000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	18200000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	853000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	674000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-77578000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-77578000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-77969000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-77969000	usd
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159958645	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159958645	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152676155	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	152676155	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.48
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.48
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.51
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.51
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	44911825	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	21043791	shares
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Firm AuditorFirmId	185

Files In Submission

Name	View Source	Status
0001628280-24-011004-index-headers.html	Edgar Link	pending
0001628280-24-011004-index.html	Edgar Link	pending
0001628280-24-011004.txt	Edgar Link	pending
0001628280-24-011004-xbrl.zip	Edgar Link	pending
ex231independentauditorsco.htm	Edgar Link	pending
ex232independentauditorsco.htm	Edgar Link	pending
exhibit1011-outsidedirecto.htm	Edgar Link	pending
exhibit1017-executiveincen.htm	Edgar Link	pending
exhibit311-ceocert2023.htm	Edgar Link	pending
exhibit312-cfocert2023.htm	Edgar Link	pending
exhibit321-ceocert2023.htm	Edgar Link	pending
exhibit322-cfocert2023.htm	Edgar Link	pending
exhibit42-descriptionofsec.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
ghw-20231231.htm	Edgar Link	pending
ghw-20231231.xsd	Edgar Link	pending
ghw-20231231_g1.jpg	Edgar Link	pending
ghw-20231231_g2.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
ghw-20231231_cal.xml	Edgar Link	unprocessable
ghw-20231231_def.xml	Edgar Link	unprocessable
ghw-20231231_lab.xml	Edgar Link	unprocessable
ghw-20231231_pre.xml	Edgar Link	unprocessable
ghw-20231231_htm.xml	Edgar Link	completed
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$GWH
ESS Tech, Inc. Stock $gwh

2024 Q1 Form 10-K Financial Statement

#000162828024011004 Filed on March 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWH ESS Tech, Inc. Stock $gwh

2024 Q1 Form 10-K Financial Statement

#000162828024011004 Filed on March 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWH
ESS Tech, Inc. Stock $gwh