$DZSI
DZS INC. Stock $dzsi

$dzsi Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000095017023007289 Filed on March 10, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$90.81M	$100.2M	$375.7M
YoY Change	17.88%	2.16%	7.28%
Cost Of Revenue	$60.99M	$70.12M	$257.3M
YoY Change	21.45%	7.6%	11.91%
Gross Profit	$29.83M	$30.06M	$118.4M
YoY Change	11.19%	-8.63%	-1.59%
Gross Profit Margin	32.84%	30.0%	31.5%
Selling, General & Admin	$24.78M	$23.42M	$85.37M
YoY Change	39.67%	13.56%	-5.4%
% of Gross Profit	83.08%	77.91%	72.13%
Research & Development	$14.85M	$16.43M	$56.12M
YoY Change	25.39%	33.99%	19.28%
% of Gross Profit	49.79%	54.67%	47.42%
Depreciation & Amortization	$2.465M	$1.622M	$3.570M
YoY Change	128.03%	62.85%	-21.56%
% of Gross Profit	8.26%	5.4%	3.02%
Operating Expenses	$45.06M	$41.47M	$145.1M
YoY Change	48.62%	24.99%	-4.89%
Operating Profit	-$15.23M	-$11.42M	-$26.71M
YoY Change	336.21%	3919.37%	-17.19%
Interest Expense	-$792.0K	-$789.0K	-$1.442M
YoY Change	780.0%	-11371.43%	505.88%
% of Operating Profit
Other Income/Expense, Net	$728.0K	$1.010M	-$1.837M
YoY Change	-191.0%	-264.76%	-280.1%
Pretax Income	-$15.30M	-$14.42M	-$35.43M
YoY Change	247.73%	1208.35%	12.59%
Income Tax	$1.800M	$141.0K	$1.999M
% Of Pretax Income
Net Earnings	-$17.14M	-$14.56M	-$37.43M
YoY Change	462.17%	537.71%	7.92%
Net Earnings / Revenue	-18.87%	-14.53%	-9.96%
Basic Earnings Per Share	-$0.55		-$1.33
Diluted Earnings Per Share	-$0.55	-$0.50	-$1.33
COMMON SHARES
Basic Shares Outstanding	31.05M	27.95M	28.09M
Diluted Shares Outstanding	31.05M shares		28.09M

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$28.89M	$38.32M	$38.32M
YoY Change	-15.42%	-17.89%	-17.89%
Cash & Equivalents	$28.89M	$38.32M	$38.32M
Short-Term Investments
Other Short-Term Assets	$12.66M	$8.371M	$8.371M
YoY Change	-34.66%	-33.02%	-33.02%
Inventory	$69.72M	$78.51M	$78.51M
Prepaid Expenses
Receivables	$141.6M	$154.4M	$154.4M
Other Receivables	$21.52M	$16.14M	$16.14M
Total Short-Term Assets	$274.4M	$295.7M	$295.7M
YoY Change	28.59%	37.55%	37.55%
LONG-TERM ASSETS
Property, Plant & Equipment	$7.135M	$22.08M	$22.08M
YoY Change	-30.57%	124.39%	-1.77%
Goodwill	$19.95M	$19.95M
YoY Change	224.69%	224.69%
Intangibles	$30.42M	$31.74M
YoY Change	531.16%	520.57%
Long-Term Investments
YoY Change
Other Assets	$17.01M	$15.54M	$15.54M
YoY Change	71.78%	73.59%	73.59%
Total Long-Term Assets	$86.49M	$89.31M	$89.31M
YoY Change	101.63%	109.21%	109.21%
TOTAL ASSETS
Total Short-Term Assets	$274.4M	$295.7M	$295.7M
Total Long-Term Assets	$86.49M	$89.31M	$89.31M
Total Assets	$360.9M	$385.0M	$385.0M
YoY Change	40.82%	49.42%	49.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$107.9M	$121.2M	$121.2M
YoY Change	69.2%	88.65%	88.65%
Accrued Expenses	$34.47M	$32.39M	$32.39M
YoY Change	66.07%	107.46%	143.41%
Deferred Revenue	$19.48M	$21.78M
YoY Change	174.19%	257.53%
Short-Term Debt	$16.75M	$9.706M	$9.706M
YoY Change
Long-Term Debt Due	$23.66M	$24.07M	$24.07M
YoY Change
Total Short-Term Liabilities	$202.3M	$209.2M	$209.2M
YoY Change	120.72%	131.19%	131.19%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$2.583M	$33.11M	$33.11M
YoY Change	-30.26%	817.37%	-6.16%
Total Long-Term Liabilities	$2.583M	$33.11M	$33.11M
YoY Change	-30.26%	817.37%	-6.16%
TOTAL LIABILITIES
Total Short-Term Liabilities	$202.3M	$209.2M	$209.2M
Total Long-Term Liabilities	$2.583M	$33.11M	$33.11M
Total Liabilities	$233.0M	$242.3M	$242.3M
YoY Change	85.9%	92.65%	92.65%
SHAREHOLDERS EQUITY
Retained Earnings	-$142.0M	-$124.8M
YoY Change	56.96%	43.45%
Common Stock	$276.3M	$271.9M
YoY Change	22.16%	21.74%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$127.9M	$142.7M	$142.7M
YoY Change
Total Liabilities & Shareholders Equity	$360.9M	$385.0M	$385.0M
YoY Change	40.82%	49.42%	49.42%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	-$17.14M	-$14.56M	-$37.43M
YoY Change	462.17%	537.71%	7.92%
Depreciation, Depletion And Amortization	$2.465M	$1.622M	$3.570M
YoY Change	128.03%	62.85%	-21.56%
Cash From Operating Activities	-$15.01M	-$13.26M	-$50.90M
YoY Change	39.82%	-1894.32%	255.28%
INVESTING ACTIVITIES
Capital Expenditures	$775.0K	$2.222M	$4.532M
YoY Change	-41.15%	-255.71%	-18.85%
Acquisitions			$23.65M
YoY Change			430.32%
Other Investing Activities	$1.790M	-$1.250M	-$23.48M
YoY Change		-322.82%	502.41%
Cash From Investing Activities	$1.015M	-$3.472M	-$28.01M
YoY Change	-177.07%	300.92%	195.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$313.0K		$625.0K
YoY Change
Cash From Financing Activities	$6.610M	33.93M	64.77M
YoY Change	-30145.45%	1442.27%	172.39%
NET CHANGE
Cash From Operating Activities	-$15.01M	-13.26M	-50.90M
Cash From Investing Activities	$1.015M	-3.472M	-28.01M
Cash From Financing Activities	$6.610M	33.93M	64.77M
Net Change In Cash	-$7.448M	17.20M	-15.18M
YoY Change	-42.59%	729.62%	1500.74%
FREE CASH FLOW
Cash From Operating Activities	-$15.01M	-$13.26M	-$50.90M
Capital Expenditures	$775.0K	$2.222M	$4.532M
Free Cash Flow	-$15.78M	-$15.48M	-$55.43M
YoY Change	30.97%	-814.77%	178.39%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001101680
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	000-32743
CY2022	dei	Entity Registrant Name EntityRegistrantName	DZS INC
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	22-3509099
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	5700 Tennyson Parkway, Suite 400
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Plano
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	75024
CY2022	dei	City Area Code CityAreaCode	469
CY2022	dei	Local Phone Number LocalPhoneNumber	327-1531
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.001 Par Value
CY2022	dei	Trading Symbol TradingSymbol	DZSI
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
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CY2022Q2	dei	Entity Public Float EntityPublicFloat	285798543
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	209174000
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	90478000
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	7864000
CY2022	dei	Auditor Firm AuditorFirmId	42
CY2022	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2022	dei	Auditor Location AuditorLocation	Dallas, Texas
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CY2021Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	64258000
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CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3609000
CY2022Q4	us-gaap	Liabilities Liabilities	242282000
CY2021Q4	us-gaap	Liabilities Liabilities	125761000
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CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	36000000
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CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-12525000
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1442000
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CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1958000
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CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3729000
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CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-4046000
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2796000
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	4278000
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	1713000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-981000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-37325000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-37016000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-21267000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.33
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.07
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.33
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.30
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.07
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28085000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26692000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21588000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28085000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26692000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21588000
CY2022	dzsi	Other Comprehensive Income Net Gain Loss On Intra Entity Foreign Currency Transactions Arising During Period Net Of Tax OtherComprehensiveIncomeNetGainLossOnIntraEntityForeignCurrencyTransactionsArisingDuringPeriodNetOfTax	-800000
CY2021	dzsi	Other Comprehensive Income Net Gain Loss On Intra Entity Foreign Currency Transactions Arising During Period Net Of Tax OtherComprehensiveIncomeNetGainLossOnIntraEntityForeignCurrencyTransactionsArisingDuringPeriodNetOfTax	-1200000
CY2020	dzsi	Other Comprehensive Income Net Gain Loss On Intra Entity Foreign Currency Transactions Arising During Period Net Of Tax OtherComprehensiveIncomeNetGainLossOnIntraEntityForeignCurrencyTransactionsArisingDuringPeriodNetOfTax	1400000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	106548000
CY2020	dzsi	Stock Issued During Period Value Exercise Of Stock Awards And Employee Stock Purchase Plan StockIssuedDuringPeriodValueExerciseOfStockAwardsAndEmployeeStockPurchasePlan	3685000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4613000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-23082000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1815000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	93579000
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	59525000
CY2021	dzsi	Stock Issued During Period Value Exercise Of Stock Awards And Employee Stock Purchase Plan StockIssuedDuringPeriodValueExerciseOfStockAwardsAndEmployeeStockPurchasePlan	6829000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8990000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-34683000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2333000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	131907000
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	30774000
CY2022	dzsi	Stock Issued During Period Value Exercise Of Stock Awards And Employee Stock Purchase Plan StockIssuedDuringPeriodValueExerciseOfStockAwardsAndEmployeeStockPurchasePlan	1975000
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15802000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-37431000
CY2022	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	68000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	174000
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	142732000
CY2022	us-gaap	Profit Loss ProfitLoss	-37431000
CY2021	us-gaap	Profit Loss ProfitLoss	-34683000
CY2020	us-gaap	Profit Loss ProfitLoss	-23082000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8429000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	4551000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5143000
CY2022	dzsi	Impairment Of Long Lived Assets And Non Cash Restructuring ImpairmentOfLongLivedAssetsAndNonCashRestructuring	827000
CY2021	dzsi	Impairment Of Long Lived Assets And Non Cash Restructuring ImpairmentOfLongLivedAssetsAndNonCashRestructuring	4425000
CY2020	dzsi	Impairment Of Long Lived Assets And Non Cash Restructuring ImpairmentOfLongLivedAssetsAndNonCashRestructuring	6472000
CY2021	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	908000
CY2020	dzsi	Non Cash Extinguishment Of Debt NonCashExtinguishmentOfDebt	1343000
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	173000
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	12000
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	149000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	15802000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8990000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	4613000
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	4946000
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	4064000
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	5531000
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-229000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14491000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3833000
CY2022	dzsi	Provision For Sales Return ProvisionForSalesReturn	2556000
CY2021	dzsi	Provision For Sales Return ProvisionForSalesReturn	1132000
CY2020	dzsi	Provision For Sales Return ProvisionForSalesReturn	1303000
CY2022	dzsi	Provision For Warranty ProvisionForWarranty	656000
CY2021	dzsi	Provision For Warranty ProvisionForWarranty	798000
CY2020	dzsi	Provision For Warranty ProvisionForWarranty	1072000
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-448000
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-335000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2875000
CY2022	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	68000
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	135000
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	468000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-18000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1329000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	316000
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	68575000
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6624000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18782000
CY2022	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	9520000
CY2021	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	4780000
CY2020	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-822000
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28219000
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	23241000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6916000
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-1488000
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-3915000
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-11341000
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6363000
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2965000
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-703000
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	61697000
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	19092000
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	11136000
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1031000
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	2215000
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	13000
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	1589000
CY2021	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-6006000
CY2020	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-2839000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-50898000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-14326000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5064000
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	165000
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	561000
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4532000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5585000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2270000
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	23647000
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4459000
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-28014000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-9483000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2270000
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	30774000
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	59525000
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	25000000
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	625000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	13125000
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	4000000
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	13774000
CY2021	dzsi	Repayments Of Short Term Borrowings And Line Of Credit RepaymentsOfShortTermBorrowingsAndLineOfCredit	13278000
CY2020	dzsi	Repayments Of Short Term Borrowings And Line Of Credit RepaymentsOfShortTermBorrowingsAndLineOfCredit	16696000
CY2022	us-gaap	Proceeds From Repayments Of Related Party Debt ProceedsFromRepaymentsOfRelatedPartyDebt	5041000
CY2020	us-gaap	Proceeds From Repayments Of Related Party Debt ProceedsFromRepaymentsOfRelatedPartyDebt	18341000
CY2021	dzsi	Repayments Of Related Party Debt Excluding Long Term Debt RepaymentsOfRelatedPartyDebtExcludingLongTermDebt	29298000
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	839000
CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	558000
CY2020	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	11645000
CY2022	dzsi	Proceeds From Exercise Of Stock Awards And Employee Stock Plan Purchases ProceedsFromExerciseOfStockAwardsAndEmployeeStockPlanPurchases	1975000
CY2021	dzsi	Proceeds From Exercise Of Stock Awards And Employee Stock Plan Purchases ProceedsFromExerciseOfStockAwardsAndEmployeeStockPlanPurchases	6829000
CY2020	dzsi	Proceeds From Exercise Of Stock Awards And Employee Stock Plan Purchases ProceedsFromExerciseOfStockAwardsAndEmployeeStockPlanPurchases	3685000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	64768000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23778000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	17624000
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1031000
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-917000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	534000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-15175000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-948000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	20952000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53639000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	54587000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33635000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38464000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53639000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	54587000
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	34347000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	46666000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	45219000
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	3969000
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	6808000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	9200000
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	148000
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	165000
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	168000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38464000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	53639000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	54587000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	1177000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	83000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	788000
CY2022	dzsi	Interest Paid To Related Party InterestPaidToRelatedParty	65000
CY2021	dzsi	Interest Paid To Related Party InterestPaidToRelatedParty	108000
CY2020	dzsi	Interest Paid To Related Party InterestPaidToRelatedParty	981000
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1017000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3029000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2645000
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dzsi	Entity Incorporation Month Year Of Incorporation EntityIncorporationMonthYearOfIncorporation	1999-06
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-37400000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-34700000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-23100000
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-124800000
CY2022Q4	dzsi	Working Capital WorkingCapital	86500000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38500000
CY2022Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	59000000.0
CY2022	us-gaap	Proceeds From Customers ProceedsFromCustomers	41700000
CY2021Q2	dzsi	Accounts Receivable Recovered AccountsReceivableRecovered	2400000
CY2022Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	13100000
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-indent:0.0%;font-size:10.0pt;margin-top:0.0pt;font-family:Times New Roman;margin-bottom:0.0pt;text-align:left;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:bold;font-size:10.0pt;font-family:"Times New Roman", serif;font-style:italic;min-width:fit-content;">(e) Use of Estimates</span></p><p style="text-indent:0.0%;font-size:10.0pt;margin-top:9.0pt;font-family:Times New Roman;margin-bottom:0.0pt;text-align:left;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;">The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates.</span><span style="color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:"Times New Roman", serif;min-width:fit-content;"> </span></p>
CY2022	dzsi	Standard Product Warranty Life StandardProductWarrantyLife	P1Y
CY2022	dzsi	Optional Extended Product Warranty Life OptionalExtendedProductWarrantyLife	P3Y
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	375691000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	350206000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	300640000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	375691000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	350206000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	300640000
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	17735000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3954000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	393000
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-229000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14491000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3833000
CY2022	dzsi	Allowance For Doubtful Accounts Receivable Utilization Write Offs And Exchange Rate Differences AllowanceForDoubtfulAccountsReceivableUtilizationWriteOffsAndExchangeRateDifferences	117000
CY2021	dzsi	Allowance For Doubtful Accounts Receivable Utilization Write Offs And Exchange Rate Differences AllowanceForDoubtfulAccountsReceivableUtilizationWriteOffsAndExchangeRateDifferences	126000
CY2020	dzsi	Allowance For Doubtful Accounts Receivable Utilization Write Offs And Exchange Rate Differences AllowanceForDoubtfulAccountsReceivableUtilizationWriteOffsAndExchangeRateDifferences	331000
CY2022	dzsi	Allowance For Doubtful Accounts Receivable Foreign Exchange Impact AllowanceForDoubtfulAccountsReceivableForeignExchangeImpact	-1606000
CY2021	dzsi	Allowance For Doubtful Accounts Receivable Foreign Exchange Impact AllowanceForDoubtfulAccountsReceivableForeignExchangeImpact	-584000
CY2020	dzsi	Allowance For Doubtful Accounts Receivable Foreign Exchange Impact AllowanceForDoubtfulAccountsReceivableForeignExchangeImpact	59000
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16184000
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	17735000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3954000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	41827000
CY2021Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	873000
CY2020Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	390000
CY2019Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	343000
CY2022	dzsi	Allowance For Sales Returns Charged To Revenue AllowanceForSalesReturnsChargedToRevenue	2556000
CY2021	dzsi	Allowance For Sales Returns Charged To Revenue AllowanceForSalesReturnsChargedToRevenue	1132000
CY2020	dzsi	Allowance For Sales Returns Charged To Revenue AllowanceForSalesReturnsChargedToRevenue	1303000
CY2022	dzsi	Allowance For Sales Returns Utilization And Write Off AllowanceForSalesReturnsUtilizationAndWriteOff	2279000
CY2021	dzsi	Allowance For Sales Returns Utilization And Write Off AllowanceForSalesReturnsUtilizationAndWriteOff	649000
CY2020	dzsi	Allowance For Sales Returns Utilization And Write Off AllowanceForSalesReturnsUtilizationAndWriteOff	1256000
CY2022Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	1150000
CY2021Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	873000
CY2020Q4	dzsi	Allowance For Sale Returns Current AllowanceForSaleReturnsCurrent	390000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10085000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	31742000
CY2022	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P10Y8M12D
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	11627000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	6512000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5115000
CY2021	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P4Y4M24D
CY2022	dzsi	Percentage Of Tax Benefit To Be Realized PercentageOfTaxBenefitToBeRealized	0.50
CY2022	dzsi	Amortization Of Intangible Assets And Cost Of Revenue AmortizationOfIntangibleAssetsAndCostOfRevenue	3600000
CY2021	dzsi	Amortization Of Intangible Assets And Cost Of Revenue AmortizationOfIntangibleAssetsAndCostOfRevenue	1600000
CY2022Q4	us-gaap	Restricted Cash Equivalents Noncurrent RestrictedCashEquivalentsNoncurrent	100000
CY2021Q4	us-gaap	Restricted Cash Equivalents Noncurrent RestrictedCashEquivalentsNoncurrent	200000
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	37354000
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	34512000
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	1050000
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	1427000
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	40109000
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	20954000
CY2022Q4	us-gaap	Inventory Net InventoryNet	78513000
CY2021Q4	us-gaap	Inventory Net InventoryNet	56893000
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30622000
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	27422000
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21062000
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17394000
CY2022Q4	dzsi	Property Plantand Equipment Under Government Grants PropertyPlantandEquipmentUnderGovernmentGrants	82000
CY2021Q4	dzsi	Property Plantand Equipment Under Government Grants PropertyPlantandEquipmentUnderGovernmentGrants	186000
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9478000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9842000
CY2022Q4	dzsi	Capitalized Cloud Computing Implementation Costs CapitalizedCloudComputingImplementationCosts	10500000
CY2021Q4	dzsi	Implementation Reporting Costs ImplementationReportingCosts	4200000
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	6214000
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	2306000
CY2022Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	8897000
CY2021Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	7230000
CY2022Q4	dzsi	Accrued Acquisition Holdback AccruedAcquisitionHoldback	2500000
CY2021Q4	dzsi	Accrued Acquisition Holdback AccruedAcquisitionHoldback	321000
CY2022Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1896000
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1981000
CY2022Q4	dzsi	Accrued Sales Returns AccruedSalesReturns	1150000
CY2021Q4	dzsi	Accrued Sales Returns AccruedSalesReturns	873000
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6902000
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3321000
CY2022Q4	dzsi	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	27559000
CY2021Q4	dzsi	Accrued Expenses And Other Current Liabilities AccruedExpensesAndOtherCurrentLiabilities	16032000
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1981000
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1522000
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1611000
CY2022	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	656000
CY2021	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	798000
CY2020	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	1072000
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	704000
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	404000
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1189000
CY2022	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-37000
CY2021	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	65000
CY2020	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	28000
CY2022Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1896000
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1981000
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1522000
CY2020	dzsi	Amortization Of Intangible Assets And Cost Of Revenue AmortizationOfIntangibleAssetsAndCostOfRevenue	3000000.0
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2976000
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	11341000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2550000
CY2022	dzsi	Income Tax Rate Reconciliation Uncertain Tax Positions IncomeTaxRateReconciliationUncertainTaxPositions	953000
CY2021	dzsi	Income Tax Rate Reconciliation Uncertain Tax Positions IncomeTaxRateReconciliationUncertainTaxPositions	2696000
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2184000
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	9135000
CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	576000
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	29641000
CY2022	dzsi	Increase Decrease In Contract With Customer Asset Net IncreaseDecreaseInContractWithCustomerAssetNet	-1608000
CY2022	dzsi	Increase Decrease In Contract With Customer Liabilities IncreaseDecreaseInContractWithCustomerLiabilities	20506000
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6000000.0
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.73
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	1000000.0
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	800000
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	700000
CY2022	us-gaap	Restructuring Costs RestructuringCosts	400000
CY2022Q4	us-gaap	Goodwill Gross GoodwillGross	7148000
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	4980000
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	1003000
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	1003000
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13807000
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	2168000
CY2022Q4	us-gaap	Goodwill Goodwill	19952000
CY2021Q4	us-gaap	Goodwill Goodwill	6145000
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	1000000.0
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	1000000.0
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	5283000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5283000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5277000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4095000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3143000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	8661000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	31742000
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1250000
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1563000
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1875000
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2188000
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	17499000
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	24375000
CY2022	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	100000
CY2021	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	100000
CY2020	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	1000000.0
CY2021Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	0
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	36000000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	25000000
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	31000000
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	31000000
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	22000
CY2022	dzsi	Effective Income Tax Rate Reconciliation Deferred State Taxes Net Of Federal Benefit EffectiveIncomeTaxRateReconciliationDeferredStateTaxesNetOfFederalBenefit	-1122000
CY2021	dzsi	Effective Income Tax Rate Reconciliation Deferred State Taxes Net Of Federal Benefit EffectiveIncomeTaxRateReconciliationDeferredStateTaxesNetOfFederalBenefit	304000
CY2020	dzsi	Effective Income Tax Rate Reconciliation Deferred State Taxes Net Of Federal Benefit EffectiveIncomeTaxRateReconciliationDeferredStateTaxesNetOfFederalBenefit	-325000
CY2021	dzsi	Income Tax Reconciliation Foreign Taxes IncomeTaxReconciliationForeignTaxes	166000
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	4278000
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	1713000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-981000
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-4172000
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-4046000
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2796000
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	700000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2006000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.83
CY2021	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P8Y4M24D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	8277000
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	5000
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	15.95
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	137000
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.92
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	365000
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	17.67
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	13000
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	13.97
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1496000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	11.83
CY2022	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y1M24D
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3281000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	756000
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	11.07
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y5M12D
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2045000
CY2022Q4	us-gaap	Share Price SharePrice	12.68
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	500000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	6200000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1900000
CY2020	dzsi	Income Tax Reconciliation Foreign Taxes IncomeTaxReconciliationForeignTaxes	3472000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	15802000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8990000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	4613000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-37431000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-34683000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-23082000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28085000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26692000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21588000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28085000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26692000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21588000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.33
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.07
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.33
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.30
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.07
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-358000
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1946000
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-65000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-35432000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-31470000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-19581000
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	89000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	29000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28000
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1910000
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1779000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3256000
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1999000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1808000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3284000
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1405000
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	217000
CY2021	dzsi	Provision Benefit For Deferred Taxes ProvisionBenefitForDeferredTaxes	1405000
CY2020	dzsi	Provision Benefit For Deferred Taxes ProvisionBenefitForDeferredTaxes	217000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1999000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3213000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3501000
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-7441000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-6609000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-4112000
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	70000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	23000
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Gilti Amount EffectiveIncomeTaxRateReconciliationGiltiAmount	5690000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Gilti Amount EffectiveIncomeTaxRateReconciliationGiltiAmount	1241000
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1862000
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	463000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	520000
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	117000
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-2613000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	189000
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1152000
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1102000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	202000
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	404000
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	490000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	211000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1999000
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CY2022	dzsi	Minimum Cumulative Change In Ownership Percentage For Annual Use Of Net Operating Losses And Tax Credit Carryforwards MinimumCumulativeChangeInOwnershipPercentageForAnnualUseOfNetOperatingLossesAndTaxCreditCarryforwards	0.50
CY2022	dzsi	Minimum Cumulative Change In Ownership Percentage For Annual Use Of Net Operating Losses And Tax Credit Carryforwards Period MinimumCumulativeChangeInOwnershipPercentageForAnnualUseOfNetOperatingLossesAndTaxCreditCarryforwardsPeriod	P3Y
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2300000
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5100000
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4188000
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CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	681000
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CY2022	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0
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CY2022Q4	us-gaap	Due From Related Parties DueFromRelatedParties	5700000
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CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y2M12D
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CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1302000
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	264000
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CY2020	us-gaap	Lease Cost LeaseCost	5657000
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CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	0
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CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5010000
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CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	100000
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CY2021	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	107000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	21000
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	246000
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	304000
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CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	21000
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CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	1606000
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CY2022Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.037
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.010
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.004
CY2022Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.020
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.017
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.017
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	707000
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	704000
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	730000
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	720000
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	743000
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	3212000
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9478000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9842000

Files In Submission

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$DZSI
DZS INC. Stock $dzsi

2023 Q1 Form 10-K Financial Statement

#000095017023007289 Filed on March 10, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DZSI DZS INC. Stock $dzsi

2023 Q1 Form 10-K Financial Statement

#000095017023007289 Filed on March 10, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DZSI
DZS INC. Stock $dzsi