$DZSI
DZS INC. Stock $dzsi

$dzsi Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000156459020012549 Filed on March 24, 2020

Income Statement

Concept	2019 Q4	2019	2018 Q4
Revenue	$77.61M	$306.9M	$74.67M
YoY Change	3.94%	8.69%	8.81%
Cost Of Revenue	$52.32M	$206.8M	$51.67M
YoY Change	1.26%	8.25%	15.05%
Gross Profit	$25.28M	$100.1M	$23.00M
YoY Change	9.91%	9.61%	3.07%
Gross Profit Margin	32.57%	32.62%	30.8%
Selling, General & Admin	$15.52M	$61.20M	$13.11M
YoY Change	18.38%	26.71%	7.99%
% of Gross Profit	61.39%	61.13%	57.0%
Research & Development	$9.000M	$38.52M	$8.960M
YoY Change	0.45%	9.09%	-0.99%
% of Gross Profit	35.6%	38.47%	38.96%
Depreciation & Amortization	$1.010M	$5.120M	$670.0K
YoY Change	50.75%	89.63%	-5.63%
% of Gross Profit	4.0%	5.11%	2.91%
Operating Expenses	$24.63M	$107.1M	$22.20M
YoY Change	10.95%	27.32%	4.13%
Operating Profit	$650.0K	-$7.029M	$800.0K
YoY Change	-18.75%	-197.9%	-66.57%
Interest Expense	-$810.0K	-$3.500M	-$350.0K
YoY Change	131.43%	133.33%	94.44%
% of Operating Profit	-124.62%		-43.75%
Other Income/Expense, Net	-$1.640M	$876.0K	-$290.0K
YoY Change	465.52%	-176.44%	-62.34%
Pretax Income	-$7.710M	-$9.678M	$170.0K
YoY Change	-4635.29%	-312.24%	-88.19%
Income Tax	$2.490M	$3.585M	$650.0K
% Of Pretax Income			382.35%
Net Earnings	-$10.19M	-$13.46M	-$550.0K
YoY Change	1752.73%	-586.34%	-113.01%
Net Earnings / Revenue	-13.13%	-4.39%	-0.74%
Basic Earnings Per Share		-$0.69
Diluted Earnings Per Share	-$475.7K	-$0.69	-$33.03K
COMMON SHARES
Basic Shares Outstanding		19.40M	16.58M shares
Diluted Shares Outstanding		19.40M

Balance Sheet

Concept	2019 Q4	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$28.70M	$28.70M	$27.70M
YoY Change	3.61%	3.61%	58.29%
Cash & Equivalents	$28.75M	$28.70M	$27.71M
Short-Term Investments
Other Short-Term Assets	$8.800M	$8.800M	$11.20M
YoY Change	-21.43%	-21.43%	-30.43%
Inventory	$35.44M	$35.40M	$33.87M
Prepaid Expenses
Receivables	$113.5M	$113.5M	$83.00M
Other Receivables	$8.124M	$8.200M	$65.00K
Total Short-Term Assets	$194.7M	$194.7M	$168.8M
YoY Change	15.37%	15.34%	26.59%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.769M	$27.20M	$5.518M
YoY Change	22.67%	394.55%	-6.04%
Goodwill	$3.977M		$3.977M
YoY Change	0.0%		0.0%
Intangibles	$12.38M		$5.649M
YoY Change	119.17%
Long-Term Investments
YoY Change
Other Assets	$6.243M	$7.900M	$2.424M
YoY Change	157.55%	29.51%	-48.61%
Total Long-Term Assets	$51.46M	$51.40M	$21.26M
YoY Change	142.1%	142.45%	-17.67%
TOTAL ASSETS
Total Short-Term Assets	$194.7M	$194.7M	$168.8M
Total Long-Term Assets	$51.46M	$51.40M	$21.26M
Total Assets	$246.1M	$246.1M	$190.0M
YoY Change	29.55%	29.53%	19.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$38.40M	$38.40M	$38.60M
YoY Change	-0.52%	-0.52%	17.68%
Accrued Expenses	$7.400M	$7.400M	$11.50M
YoY Change	-35.65%	94.74%	2.68%
Deferred Revenue	$3.600M		$8.511M
YoY Change	-57.7%		159.56%
Short-Term Debt	$18.30M	$15.80M	$0.00
YoY Change			-100.0%
Long-Term Debt Due	$17.48M	$1.700M	$31.76M
YoY Change	-44.95%	-94.65%	60.41%
Total Short-Term Liabilities	$79.80M	$79.80M	$93.47M
YoY Change	-14.62%	-14.65%	31.61%
LONG-TERM LIABILITIES
Long-Term Debt	$19.03M	$19.00M	$14.14M
YoY Change	34.58%	34.75%	44.31%
Other Long-Term Liabilities	$1.710M	$40.80M	$2.739M
YoY Change	-37.57%	806.67%	2.7%
Total Long-Term Liabilities	$20.74M	$59.80M	$16.88M
YoY Change	22.88%	221.51%	532.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$79.80M	$79.80M	$93.47M
Total Long-Term Liabilities	$20.74M	$59.80M	$16.88M
Total Liabilities	$139.6M	$139.6M	$112.2M
YoY Change	24.47%	23.76%	31.39%
SHAREHOLDERS EQUITY
Retained Earnings	-$29.23M		-$15.78M
YoY Change	85.3%		-16.31%
Common Stock	$139.7M		$93.21M
YoY Change	49.9%		3.32%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$106.5M	$106.5M	$77.24M
YoY Change
Total Liabilities & Shareholders Equity	$246.1M	$246.1M	$190.0M
YoY Change	29.55%	29.53%	19.41%

Cashflow Statement

Concept	2019 Q4	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	-$10.19M	-$13.46M	-$550.0K
YoY Change	1752.73%	-586.34%	-113.01%
Depreciation, Depletion And Amortization	$1.010M	$5.120M	$670.0K
YoY Change	50.75%	89.63%	-5.63%
Cash From Operating Activities	-$810.0K	-$22.70M	$3.490M
YoY Change	-123.21%	85.81%	38.49%
INVESTING ACTIVITIES
Capital Expenditures	-$850.0K	$2.314M	-$430.0K
YoY Change	97.67%	95.77%	72.0%
Acquisitions		$4.660M
YoY Change
Other Investing Activities	$40.00K	-$4.660M	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$810.0K	-$6.974M	-$430.0K
YoY Change	88.37%	491.02%	-105.59%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$42.51M
YoY Change		4550.88%
Debt Paid & Issued, Net		$11.88M
YoY Change
Cash From Financing Activities	-18.14M	28.04M	3.830M
YoY Change	-573.63%	47.58%	15.02%
NET CHANGE
Cash From Operating Activities	-810.0K	-22.70M	3.490M
Cash From Investing Activities	-810.0K	-6.974M	-430.0K
Cash From Financing Activities	-18.14M	28.04M	3.830M
Net Change In Cash	-19.76M	-2.013M	6.890M
YoY Change	-386.79%	-147.52%	-49.11%
FREE CASH FLOW
Cash From Operating Activities	-$810.0K	-$22.70M	$3.490M
Capital Expenditures	-$850.0K	$2.314M	-$430.0K
Free Cash Flow	$40.00K	-$25.02M	$3.920M
YoY Change	-98.98%	86.69%	41.52%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2019	dei	Entity Registrant Name EntityRegistrantName	DASAN ZHONE SOLUTIONS INC
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.001 Par Value
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Entity File Number EntityFileNumber	000-32743
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Alameda
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	22-3509099
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	94502
CY2019	dei	City Area Code CityAreaCode	510
CY2019	dei	Local Phone Number LocalPhoneNumber	777-7000
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001101680
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1350 South Loop Road, Suite 130
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Small Business EntitySmallBusiness	true
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
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CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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CY2019	dei	Trading Symbol TradingSymbol	DZSI
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
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CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	246147000
CY2019	dzsi	Revenue Net Excluding Related Party RevenueNetExcludingRelatedParty	304369000
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CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	393000
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CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16746000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	73767000
CY2018	us-gaap	Cumulative Effect On Retained Earnings Net Of Tax1 CumulativeEffectOnRetainedEarningsNetOfTax1	308000
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	914000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2080000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2051000
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	42509000
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	951000
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	256000
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	367000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3508000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3732000
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5115000
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2702000
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	664000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3508000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	2080000
CY2019	us-gaap	Inventory Lifo Reserve Effect On Income Net InventoryLIFOReserveEffectOnIncomeNet	2984000
CY2018	us-gaap	Inventory Lifo Reserve Effect On Income Net InventoryLIFOReserveEffectOnIncomeNet	835000
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	155000
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	20000
CY2019	dzsi	Provision For Sales Return ProvisionForSalesReturn	370000
CY2018	dzsi	Provision For Sales Return ProvisionForSalesReturn	1343000
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-158000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1229000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1130000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	202000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	23072000
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10287000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-4802000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9359000
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	5962000
CY2018	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	12175000
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	7688000
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3381000
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	10340000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	5702000
CY2019	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	854000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-3727000
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3800000
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	5458000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-22702000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-12218000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2314000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1182000
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4660000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6974000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1180000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	42509000
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	49243000
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	55518000
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	69357000
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	45033000
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	25000000
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	11875000
CY2018	us-gaap	Proceeds From Repayments Of Related Party Debt ProceedsFromRepaymentsOfRelatedPartyDebt	12064000
CY2019	dzsi	Repayments Of Related Party Debt Excluding Long Term Debt RepaymentsOfRelatedPartyDebtExcludingLongTermDebt	5000000
CY2018	dzsi	Repayments Of Related Party Debt Excluding Long Term Debt RepaymentsOfRelatedPartyDebtExcludingLongTermDebt	4460000
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2148000
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	951000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	623000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	914000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	28044000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	19003000
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-381000
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1369000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2013000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	4236000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	35648000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	31412000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33635000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	2786000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	1332000
CY2019	dzsi	Interest Paid To Related Party InterestPaidToRelatedParty	509000
CY2018	dzsi	Interest Paid To Related Party InterestPaidToRelatedParty	611000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2017000
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1260000
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">(f) Use of Estimates</p> <p style="margin-top:9pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">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. </p>
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	8.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	7.47
CY2019Q4	dzsi	Numberof Customers NumberofCustomers	1200
CY2019Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	120
CY2019	dzsi	Entity Incorporation Month Year Of Incorporation EntityIncorporationMonthYearOfIncorporation	1999-06
CY2019Q4	dzsi	Working Capital WorkingCapital	114900000
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	38000000
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	18300000
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	328000
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1246000
CY2018	dzsi	Allowance For Doubtful Accounts Receivable Reversal Of Expense AllowanceForDoubtfulAccountsReceivableReversalOfExpense	-11000
CY2019	dzsi	Allowance For Doubtful Accounts Receivable Utilization Write Offs And Exchange Rate Differences AllowanceForDoubtfulAccountsReceivableUtilizationWriteOffsAndExchangeRateDifferences	90000
CY2018	dzsi	Allowance For Doubtful Accounts Receivable Utilization Write Offs And Exchange Rate Differences AllowanceForDoubtfulAccountsReceivableUtilizationWriteOffsAndExchangeRateDifferences	927000
CY2019	dzsi	Allowance For Sales Returns Charged To Revenue AllowanceForSalesReturnsChargedToRevenue	370000
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	22500000
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	22500000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	0
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	0
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15774000
CY2018Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15688000
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	1458000
CY2018Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	2429000
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	18207000
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	15751000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	20270000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	17201000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13130000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	11271000
CY2019Q4	dzsi	Property Plantand Equipment Under Government Grants PropertyPlantandEquipmentUnderGovernmentGrants	371000
CY2018Q4	dzsi	Property Plantand Equipment Under Government Grants PropertyPlantandEquipmentUnderGovernmentGrants	412000
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1319000
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	1618000
CY2018Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	2461000
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9615000
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	7737000
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	931000
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	967000
CY2018	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	1171000
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	903000
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	791000
CY2019	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	230000
CY2019	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-2000
CY2018	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	8000
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	16700000
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	11400000
CY2019Q4	dzsi	Contract Liability Products And Services Current ContractLiabilityProductsAndServicesCurrent	2700000
CY2019Q4	us-gaap	Extended Product Warranty Accrual Current ExtendedProductWarrantyAccrualCurrent	900000
CY2019Q4	dzsi	Contract Liability Products And Services Noncurrent ContractLiabilityProductsAndServicesNoncurrent	1000000
CY2019Q4	us-gaap	Extended Product Warranty Accrual Noncurrent ExtendedProductWarrantyAccrualNoncurrent	2200000
CY2019	us-gaap	Restructuring Charges RestructuringCharges	4900000
CY2019	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	1000000
CY2017Q4	us-gaap	Goodwill Goodwill	3977000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	18135000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	5754000
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12381000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	10479000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4830000
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	5649000
CY2019	dzsi	Amortizationand Impairmentof Intangible Assets AmortizationandImpairmentofIntangibleAssets	3100000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3103000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2899000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	2491000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2491000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	524000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	873000
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount Current DebtInstrumentUnamortizedDiscountCurrent	795000
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	17484000
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount Noncurrent DebtInstrumentUnamortizedDiscountNoncurrent	688000
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	19033000
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1483000
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	36517000
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	31762000
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	14142000
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	45904000
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	18279000
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3438000
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	16283000
CY2018Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.035
CY2019Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	15779000
CY2018Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	24762000
CY2019Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.027
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	4600000
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5500000
CY2019	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	400000
CY2018	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	400000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-15000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-12000
CY2019Q4	dzsi	Number Of Share Based Compensation Plans NumberOfShareBasedCompensationPlans	1
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.22
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.49
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1744000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	470000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	128000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	39000
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	35000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2012000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	2012000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	946000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.00
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.36
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	9.83
CY2019	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	37000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.22
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	8.32
CY2019	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y4M9D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P7Y4M9D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y8M26D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2418000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2418000
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1684000
CY2019Q4	us-gaap	Share Price SharePrice	8.86
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	200000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	600000
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	6300000
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1213000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	836000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	155000
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	150000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	1744000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	488000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.50
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	9.86
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	8.00
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.08
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CY2019	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-9678000
CY2018	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	4560000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	13000
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2439000
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1509000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2455000
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1522000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	12000
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1130000
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	190000
CY2019	dzsi	Provision Benefit For Deferred Taxes ProvisionBenefitForDeferredTaxes	1130000
CY2018	dzsi	Provision Benefit For Deferred Taxes ProvisionBenefitForDeferredTaxes	202000
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2032000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	953000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	13000
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	297000
CY2019	dzsi	Income Tax Reconciliation State Change In Deferred IncomeTaxReconciliationStateChangeInDeferred	1927000
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2751000
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	129000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	557000
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-906000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	544000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	297000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1178000
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	212000
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	280000
CY2018	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	74000
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-18000
CY2019Q4	dzsi	Deferred Tax Assets Operating Loss And Capital Loss Carryforwards DeferredTaxAssetsOperatingLossAndCapitalLossCarryforwards	23195000
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CY2019Q4	dzsi	Deferred Tax Assets Property Plant And Equipment And Intangible Assets DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets	1057000
CY2018Q4	dzsi	Deferred Tax Assets Property Plant And Equipment And Intangible Assets DeferredTaxAssetsPropertyPlantAndEquipmentAndIntangibleAssets	1451000
CY2019Q4	dzsi	Deferred Tax Assets Inventory And Reserves DeferredTaxAssetsInventoryAndReserves	1368000
CY2018Q4	dzsi	Deferred Tax Assets Inventory And Reserves DeferredTaxAssetsInventoryAndReserves	1998000
CY2019Q4	dzsi	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	1684000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2552000
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CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	26827000
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CY2019Q4	dzsi	Deferred Tax Assets Operating Lease Right Of Use Asset DeferredTaxAssetsOperatingLeaseRightOfUseAsset	1407000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1407000
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CY2019	dzsi	Minimum Cumulative Change In Ownership Percentage For Annual Use Of Net Operating Losses And Tax Credit Carryforwards MinimumCumulativeChangeInOwnershipPercentageForAnnualUseOfNetOperatingLossesAndTaxCreditCarryforwards	0.50
CY2019	dzsi	Minimum Cumulative Change In Ownership Percentage For Annual Use Of Net Operating Losses And Tax Credit Carryforwards Period MinimumCumulativeChangeInOwnershipPercentageForAnnualUseOfNetOperatingLossesAndTaxCreditCarryforwardsPeriod	P3Y
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CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	807000
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	380000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	229000
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	427000
CY2019	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0
CY2018	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	0
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	5212000
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	644000
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	404000
CY2019	us-gaap	Lease Cost LeaseCost	6260000
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CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	4932000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3812000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	22355000
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CY2019	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	700000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5287000
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CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4211000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3795000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3320000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	3457000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	24725000
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CY2019	dzsi	Product Warranty Term ProductWarrantyTerm	P2Y
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	0
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.0833
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	219000
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	265000
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	484000
CY2019	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Benefit Obligation DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation	16191000
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	456000
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1793000
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CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	17700000
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CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	602000
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Files In Submission

Name	View Source	Status
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report.css	Edgar Link	pending
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$DZSI
DZS INC. Stock $dzsi

2019 Q4 Form 10-K Financial Statement

#000156459020012549 Filed on March 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DZSI DZS INC. Stock $dzsi

2019 Q4 Form 10-K Financial Statement

#000156459020012549 Filed on March 24, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DZSI
DZS INC. Stock $dzsi