2021 Q1 Form 10-K Financial Statement
#000143774921006162 Filed on March 16, 2021
Income Statement
Concept | 2021 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
Revenue | $81.03M | $94.91M | $78.01M |
YoY Change | 23.45% | 10.86% | -1.54% |
Cost Of Revenue | $74.00M | $54.16M | |
YoY Change | 13.67% | -17.89% | |
Gross Profit | $18.36M | $20.91M | $23.85M |
YoY Change | 13.92% | 2.18% | 22.64% |
Gross Profit Margin | 22.66% | 22.03% | 30.57% |
Selling, General & Admin | $6.400M | $6.609M | |
YoY Change | 12.28% | 13.38% | |
% of Gross Profit | 30.61% | 27.71% | |
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $870.0K | $916.0K | |
YoY Change | -10.31% | -10.81% | |
% of Gross Profit | 4.16% | 3.84% | |
Operating Expenses | $6.500M | $6.609M | |
YoY Change | 14.04% | 13.38% | |
Operating Profit | $14.41M | $17.24M | |
YoY Change | -2.4% | 151.94% | |
Interest Expense | |||
YoY Change | |||
% of Operating Profit | |||
Other Income/Expense, Net | $1.300M | $1.398M | |
YoY Change | -7.14% | 17.58% | |
Pretax Income | $15.70M | $18.64M | |
YoY Change | -5.42% | 132.05% | |
Income Tax | $4.000M | $3.924M | |
% Of Pretax Income | 25.48% | 21.06% | |
Net Earnings | $8.993M | $11.72M | $16.39M |
YoY Change | 9.38% | -0.71% | 52.1% |
Net Earnings / Revenue | 11.1% | 12.35% | 21.01% |
Basic Earnings Per Share | $1.28 | ||
Diluted Earnings Per Share | $1.648M | $2.343M | |
COMMON SHARES | |||
Basic Shares Outstanding | 7.026M | 7.003M | |
Diluted Shares Outstanding |
Balance Sheet
Concept | 2021 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $158.3M | $144.0M | |
YoY Change | -17.31% | -21.36% | |
Cash & Equivalents | $79.58M | $59.17M | |
Short-Term Investments | $78.73M | $84.78M | |
Other Short-Term Assets | $6.668M | $5.485M | |
YoY Change | -2.93% | -17.51% | |
Inventory | $128.5M | $133.7M | |
Prepaid Expenses | |||
Receivables | $41.46M | $41.34M | |
Other Receivables | $2.800M | $2.900M | |
Total Short-Term Assets | $337.8M | $327.3M | |
YoY Change | -4.1% | -1.9% | |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $37.28M | $39.74M | |
YoY Change | -4.76% | -14.03% | |
Goodwill | $15.32M | $15.82M | |
YoY Change | 33.37% | 37.78% | |
Intangibles | $3.059M | $2.988M | |
YoY Change | 205.9% | 167.26% | |
Long-Term Investments | |||
YoY Change | |||
Other Assets | $4.782M | $6.559M | |
YoY Change | 185.66% | 65.38% | |
Total Long-Term Assets | $72.42M | $76.94M | |
YoY Change | 18.03% | 8.84% | |
TOTAL ASSETS | |||
Total Short-Term Assets | $337.8M | $327.3M | |
Total Long-Term Assets | $72.42M | $76.94M | |
Total Assets | $410.3M | $404.3M | |
YoY Change | -0.81% | -0.02% | |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $21.65M | $23.40M | |
YoY Change | -36.5% | -36.09% | |
Accrued Expenses | $13.32M | $14.60M | |
YoY Change | 10.93% | 5.79% | |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | |
YoY Change | |||
Long-Term Debt Due | |||
YoY Change | |||
Total Short-Term Liabilities | $39.30M | $45.30M | |
YoY Change | -17.26% | -10.14% | |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $0.00 | $0.00 | |
YoY Change | |||
Other Long-Term Liabilities | $0.00 | $3.100M | |
YoY Change | |||
Total Long-Term Liabilities | $0.00 | $3.100M | |
YoY Change | |||
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $39.30M | $45.30M | |
Total Long-Term Liabilities | $0.00 | $3.100M | |
Total Liabilities | $42.30M | $48.40M | |
YoY Change | -10.95% | 14.69% | |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $362.8M | ||
YoY Change | 0.04% | ||
Common Stock | $18.89M | ||
YoY Change | 6.11% | ||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $13.91M | ||
YoY Change | -3.46% | ||
Treasury Stock Shares | $434.2K | ||
Shareholders Equity | $368.0M | $355.9M | |
YoY Change | |||
Total Liabilities & Shareholders Equity | $410.3M | $404.3M | |
YoY Change | -0.81% | -0.02% |
Cashflow Statement
Concept | 2021 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $8.993M | $11.72M | $16.39M |
YoY Change | 9.38% | -0.71% | 52.1% |
Depreciation, Depletion And Amortization | $870.0K | $916.0K | |
YoY Change | -10.31% | -10.81% | |
Cash From Operating Activities | $13.15M | -$11.43M | |
YoY Change | 109.73% | -245.42% | |
INVESTING ACTIVITIES | |||
Capital Expenditures | $1.190M | -$760.0K | |
YoY Change | -175.32% | -65.61% | |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $6.070M | $8.140M | |
YoY Change | -121.39% | 10.45% | |
Cash From Investing Activities | $7.250M | $7.390M | |
YoY Change | -124.2% | 43.22% | |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 0.000 | -220.0K | |
YoY Change | |||
NET CHANGE | |||
Cash From Operating Activities | 13.15M | -11.43M | |
Cash From Investing Activities | 7.250M | 7.390M | |
Cash From Financing Activities | 0.000 | -220.0K | |
Net Change In Cash | 20.40M | -4.260M | |
YoY Change | -186.11% | -132.72% | |
FREE CASH FLOW | |||
Cash From Operating Activities | $13.15M | -$11.43M | |
Capital Expenditures | $1.190M | -$760.0K | |
Free Cash Flow | $11.96M | -$10.67M | |
YoY Change | 52.36% | -205.96% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2021Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
7025943 | |
CY2020Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
940000 | USD |
CY2019Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
0 | USD |
CY2020Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2019Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2020Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
CY2019Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
12000000 | |
CY2019Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
12000000 | |
CY2020Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
7440518 | |
CY2019Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
7440518 | |
CY2020Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
7025433 | |
CY2019Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
7006323 | |
CY2020Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
415085 | |
CY2019Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
434195 | |
CY2018 | npk |
Regular Dividends Per Share Paid
RegularDividendsPerSharePaid
|
1.00 | |
CY2018 | npk |
Extra Dividends Per Share Paid
ExtraDividendsPerSharePaid
|
5.00 | |
CY2019 | npk |
Regular Dividends Per Share Paid
RegularDividendsPerSharePaid
|
1.00 | |
CY2019 | npk |
Extra Dividends Per Share Paid
ExtraDividendsPerSharePaid
|
5.00 | |
CY2020 | npk |
Regular Dividends Per Share Paid
RegularDividendsPerSharePaid
|
1.00 | |
CY2020 | npk |
Extra Dividends Per Share Paid
ExtraDividendsPerSharePaid
|
5.00 | |
CY2019 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
0 | USD |
CY2018 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
0 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
0 | USD |
CY2020 | npk |
Debt Securities Available For Sale Number Of Days To Tender
DebtSecuritiesAvailableForSaleNumberOfDaysToTender
|
P7D | |
CY2019 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2018 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2019 | us-gaap |
Impairment Of Intangible Assets Excluding Goodwill
ImpairmentOfIntangibleAssetsExcludingGoodwill
|
0 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
214000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
214000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
214000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
214000 | USD |
CY2020 | npk |
Expected Prepayment Utilization Period
ExpectedPrepaymentUtilizationPeriod
|
P2Y | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
520000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
-0 | USD |
CY2020 | us-gaap |
Open Tax Year
OpenTaxYear
|
2017 2018 2019 | |
CY2020 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
3 | pure |
CY2020 | npk |
Government Contract Number Of Contractors
GovernmentContractNumberOfContractors
|
2 | pure |
CY2020 | npk |
Supply Commitment Commitment Term
SupplyCommitmentCommitmentTerm
|
P5Y | |
CY2019Q1 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
3832000 | USD |
CY2019Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
1247000 | USD |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
86036000 | USD |
CY2019Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
79579000 | USD |
CY2020Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
68981000 | USD |
CY2019Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
78733000 | USD |
CY2020Q4 | us-gaap |
Accounts Receivable Gross
AccountsReceivableGross
|
53979000 | USD |
CY2019Q4 | us-gaap |
Accounts Receivable Gross
AccountsReceivableGross
|
41914000 | USD |
CY2020Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
312000 | USD |
CY2020Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
53667000 | USD |
CY2019Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
450000 | USD |
CY2019Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
41464000 | USD |
CY2020Q4 | us-gaap |
Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
|
31440000 | USD |
CY2019Q4 | us-gaap |
Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
|
33495000 | USD |
CY2019Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
21652000 | USD |
CY2020Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
4777000 | USD |
CY2019Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
3799000 | USD |
CY2020Q4 | us-gaap |
Inventory Work In Process
InventoryWorkInProcess
|
96463000 | USD |
CY2019Q4 | us-gaap |
Inventory Work In Process
InventoryWorkInProcess
|
87805000 | USD |
CY2020Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
7585000 | USD |
CY2020Q4 | us-gaap |
Inventory Net
InventoryNet
|
135488000 | USD |
CY2019Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
7236000 | USD |
CY2019Q4 | us-gaap |
Inventory Net
InventoryNet
|
128536000 | USD |
CY2020Q4 | us-gaap |
Notes And Loans Receivable Net Current
NotesAndLoansReceivableNetCurrent
|
2869000 | USD |
CY2019Q4 | us-gaap |
Notes And Loans Receivable Net Current
NotesAndLoansReceivableNetCurrent
|
2853000 | USD |
CY2020Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
10199000 | USD |
CY2019Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
6668000 | USD |
CY2020Q4 | us-gaap |
Assets Current
AssetsCurrent
|
357240000 | USD |
CY2019Q4 | us-gaap |
Assets Current
AssetsCurrent
|
337833000 | USD |
CY2020Q4 | us-gaap |
Land
Land
|
3008000 | USD |
CY2019Q4 | us-gaap |
Land
Land
|
3008000 | USD |
CY2020Q4 | us-gaap |
Buildings And Improvements Gross
BuildingsAndImprovementsGross
|
48706000 | USD |
CY2019Q4 | us-gaap |
Buildings And Improvements Gross
BuildingsAndImprovementsGross
|
47748000 | USD |
CY2020Q4 | us-gaap |
Machinery And Equipment Gross
MachineryAndEquipmentGross
|
44774000 | USD |
CY2019Q4 | us-gaap |
Machinery And Equipment Gross
MachineryAndEquipmentGross
|
43226000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
96488000 | USD |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
93982000 | USD |
CY2020Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
59375000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
37113000 | USD |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
56704000 | USD |
CY2019Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
37278000 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
15317000 | USD |
CY2019Q4 | us-gaap |
Goodwill
Goodwill
|
15317000 | USD |
CY2020Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
2838000 | USD |
CY2019Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
3059000 | USD |
CY2020Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
7399000 | USD |
CY2019Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
7182000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
3363000 | USD |
CY2019Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
3521000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
2994000 | USD |
CY2019Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
1281000 | USD |
CY2020Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
6906000 | USD |
CY2019Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
4782000 | USD |
CY2020Q4 | us-gaap |
Assets
Assets
|
433170000 | USD |
CY2019Q4 | us-gaap |
Assets
Assets
|
410253000 | USD |
CY2020Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
33474000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
573000 | USD |
CY2019Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
520000 | USD |
CY2020Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
16268000 | USD |
CY2019Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
13324000 | USD |
CY2020Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
55092000 | USD |
CY2019Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
39295000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
2790000 | USD |
CY2019Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
3001000 | USD |
CY2020Q4 | us-gaap |
Liabilities
Liabilities
|
58822000 | USD |
CY2019Q4 | us-gaap |
Liabilities
Liabilities
|
42296000 | USD |
CY2020Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
7441000 | USD |
CY2019Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
7441000 | USD |
CY2020Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
12438000 | USD |
CY2019Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
11447000 | USD |
CY2020Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
367627000 | USD |
CY2019Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
362842000 | USD |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
154000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
136000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity Before Treasury Stock
StockholdersEquityBeforeTreasuryStock
|
387660000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity Before Treasury Stock
StockholdersEquityBeforeTreasuryStock
|
381866000 | USD |
CY2020Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
13312000 | USD |
CY2019Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
13909000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
374348000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
367957000 | USD |
CY2020Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
433170000 | USD |
CY2019Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
410253000 | USD |
CY2020 | us-gaap |
Revenues
Revenues
|
352627000 | USD |
CY2019 | us-gaap |
Revenues
Revenues
|
308510000 | USD |
CY2018 | us-gaap |
Revenues
Revenues
|
323317000 | USD |
CY2020 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
267705000 | USD |
CY2019 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
236585000 | USD |
CY2018 | us-gaap |
Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
|
247434000 | USD |
CY2020 | us-gaap |
Gross Profit
GrossProfit
|
84922000 | USD |
CY2019 | us-gaap |
Gross Profit
GrossProfit
|
71925000 | USD |
CY2018 | us-gaap |
Gross Profit
GrossProfit
|
75883000 | USD |
CY2020 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
28505000 | USD |
CY2019 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
25462000 | USD |
CY2018 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
23286000 | USD |
CY2020 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
221000 | USD |
CY2019 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
83000 | USD |
CY2018 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2167000 | USD |
CY2020 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
-0 | USD |
CY2019 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
-0 | USD |
CY2018 | us-gaap |
Gain Loss On Sale Of Business
GainLossOnSaleOfBusiness
|
-2528000 | USD |
CY2020 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
56196000 | USD |
CY2019 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
46380000 | USD |
CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
47902000 | USD |
CY2020 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
3792000 | USD |
CY2019 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
5926000 | USD |
CY2018 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
4437000 | USD |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
12450000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
59988000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
52306000 | USD |
CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
52339000 | USD |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
13030000 | USD |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
11766000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
46958000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
40540000 | USD |
CY2018 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
39889000 | USD |
CY2020 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
0 | USD |
CY2019 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
1680000 | USD |
CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
51000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46958000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
42220000 | USD |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39940000 | USD |
CY2020 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
7038000 | |
CY2019 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
7018000 | |
CY2018 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
7005000 | |
CY2020 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
6.67 | |
CY2019 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
5.78 | |
CY2018 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
5.69 | |
CY2020 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2019 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0.24 | |
CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0.01 | |
CY2020 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
6.67 | |
CY2019 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
6.02 | |
CY2018 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
5.70 | |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46958000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
42220000 | USD |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39940000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
18000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
115000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
107000 | USD |
CY2020 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
46976000 | USD |
CY2019 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
42335000 | USD |
CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
40047000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46958000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
42220000 | USD |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39940000 | USD |
CY2020 | us-gaap |
Depreciation
Depreciation
|
2784000 | USD |
CY2019 | us-gaap |
Depreciation
Depreciation
|
3606000 | USD |
CY2018 | us-gaap |
Depreciation
Depreciation
|
4052000 | USD |
CY2020 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
221000 | USD |
CY2019 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
83000 | USD |
CY2018 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2167000 | USD |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-1718000 | USD |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-224000 | USD |
CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-121000 | USD |
CY2020 | us-gaap |
Other Noncash Income Tax Expense
OtherNoncashIncomeTaxExpense
|
0 | USD |
CY2019 | us-gaap |
Other Noncash Income Tax Expense
OtherNoncashIncomeTaxExpense
|
1370000 | USD |
CY2018 | us-gaap |
Other Noncash Income Tax Expense
OtherNoncashIncomeTaxExpense
|
0 | USD |
CY2020 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
-0 | USD |
CY2019 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
-0 | USD |
CY2018 | us-gaap |
Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax
DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
|
-2528000 | USD |
CY2020 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
-2000 | USD |
CY2019 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
-322000 | USD |
CY2018 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
-163000 | USD |
CY2020 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
0 | USD |
CY2019 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
7000 | USD |
CY2018 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
458000 | USD |
CY2020 | npk |
Noncash Retirement Plan Expense
NoncashRetirementPlanExpense
|
721000 | USD |
CY2019 | npk |
Noncash Retirement Plan Expense
NoncashRetirementPlanExpense
|
680000 | USD |
CY2018 | npk |
Noncash Retirement Plan Expense
NoncashRetirementPlanExpense
|
698000 | USD |
CY2020 | us-gaap |
Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
|
-0 | USD |
CY2019 | us-gaap |
Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
|
2300000 | USD |
CY2018 | us-gaap |
Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
|
-0 | USD |
CY2020 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-131000 | USD |
CY2019 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-464000 | USD |
CY2018 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-229000 | USD |
CY2020 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
12203000 | USD |
CY2019 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
-10915000 | USD |
CY2018 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
-11546000 | USD |
CY2020 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
6952000 | USD |
CY2019 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
34241000 | USD |
CY2018 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-6821000 | USD |
CY2020 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
5655000 | USD |
CY2019 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
2803000 | USD |
CY2018 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-4067000 | USD |
CY2020 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
15706000 | USD |
CY2019 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-11561000 | USD |
CY2018 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
6066000 | USD |
CY2020 | us-gaap |
Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable
|
978000 | USD |
CY2019 | us-gaap |
Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable
|
1045000 | USD |
CY2018 | us-gaap |
Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable
|
-2366000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
40973000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
9583000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
76248000 | USD |
CY2020 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
48047000 | USD |
CY2019 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
105409000 | USD |
CY2018 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
163271000 | USD |
CY2020 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
57823000 | USD |
CY2019 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
161420000 | USD |
CY2018 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
173060000 | USD |
CY2020 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
0 | USD |
CY2018 | us-gaap |
Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
|
9410000 | USD |
CY2020 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
2621000 | USD |
CY2019 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3138000 | USD |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
8686000 | USD |
CY2020 | us-gaap |
Payments To Acquire Notes Receivable
PaymentsToAcquireNotesReceivable
|
-0 | USD |
CY2019 | us-gaap |
Payments To Acquire Notes Receivable
PaymentsToAcquireNotesReceivable
|
-0 | USD |
CY2018 | us-gaap |
Payments To Acquire Notes Receivable
PaymentsToAcquireNotesReceivable
|
2300000 | USD |
CY2020 | us-gaap |
Proceeds From Sale And Collection Of Notes Receivable
ProceedsFromSaleAndCollectionOfNotesReceivable
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Sale And Collection Of Notes Receivable
ProceedsFromSaleAndCollectionOfNotesReceivable
|
2146000 | USD |
CY2018 | us-gaap |
Proceeds From Sale And Collection Of Notes Receivable
ProceedsFromSaleAndCollectionOfNotesReceivable
|
0 | USD |
CY2020 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
-0 | USD |
CY2019 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
3733000 | USD |
CY2018 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
-0 | USD |
CY2020 | npk |
Proceeds From Legal Settlements Investing Activities
ProceedsFromLegalSettlementsInvestingActivities
|
0 | USD |
CY2019 | npk |
Proceeds From Legal Settlements Investing Activities
ProceedsFromLegalSettlementsInvestingActivities
|
2300000 | USD |
CY2018 | npk |
Proceeds From Legal Settlements Investing Activities
ProceedsFromLegalSettlementsInvestingActivities
|
0 | USD |
CY2020 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
807000 | USD |
CY2018 | us-gaap |
Proceeds From Insurance Settlement Investing Activities
ProceedsFromInsuranceSettlementInvestingActivities
|
2630000 | USD |
CY2020 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
767000 | USD |
CY2018 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
1000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
7155000 | USD |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
78562000 | USD |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
78733000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
|
25143000 | USD |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
176000 | USD |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
5000 | USD |
CY2020 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
57823000 | USD |
CY2019 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
161420000 | USD |
CY2018 | us-gaap |
Proceeds From Sale And Maturity Of Available For Sale Securities
ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
|
173060000 | USD |
CY2020 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
0 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
24000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
145000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
135000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
0 | USD |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
38007000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
5006000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
825000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
55160000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
10844000 | USD |
CY2020 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
42172000 | USD |
CY2019 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
42087000 | USD |
CY2018 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
41989000 | USD |
CY2020 | us-gaap |
Proceeds From Sale Of Treasury Stock
ProceedsFromSaleOfTreasuryStock
|
528000 | USD |
CY2019 | us-gaap |
Proceeds From Sale Of Treasury Stock
ProceedsFromSaleOfTreasuryStock
|
518000 | USD |
CY2018 | us-gaap |
Proceeds From Sale Of Treasury Stock
ProceedsFromSaleOfTreasuryStock
|
528000 | USD |
CY2020 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-27000 | USD |
CY2019 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-442000 | USD |
CY2018 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-6000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-41671000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-42011000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-41467000 | USD |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
6457000 | USD |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
22732000 | USD |
CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
45625000 | USD |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
79579000 | USD |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
56847000 | USD |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11222000 | USD |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
86036000 | USD |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
79579000 | USD |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
56847000 | USD |
CY2020 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
13803000 | USD |
CY2019 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
10187000 | USD |
CY2018 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
14968000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
366376000 | USD |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39940000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
107000 | USD |
CY2018 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
41989000 | USD |
CY2018 | us-gaap |
Stock Issued During Period Value Other
StockIssuedDuringPeriodValueOther
|
1689000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
366123000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
42220000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
115000 | USD |
CY2019 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
42087000 | USD |
CY2019 | us-gaap |
Stock Issued During Period Value Other
StockIssuedDuringPeriodValueOther
|
1586000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
367957000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46958000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
|
18000 | USD |
CY2020 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
42172000 | USD |
CY2020 | us-gaap |
Stock Issued During Period Value Other
StockIssuedDuringPeriodValueOther
|
1587000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
374348000 | USD |
CY2020 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt 0pt 0pt 36pt; text-align: left; text-indent: -18pt;">(<em style="font: inherit;">1</em>) USE OF ESTIMATES IN THE PREPARATION OF FINANCIAL STATEMENTS: In preparation of the Company's Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and related revenues and expenses. Actual results could differ from the estimates used by management.</p> <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt 0pt 0pt 36pt; text-align: left;"> </p> | |
CY2020Q4 | us-gaap |
Accounts Payable Other Current
AccountsPayableOtherCurrent
|
4510000 | USD |
CY2019Q4 | us-gaap |
Accounts Payable Other Current
AccountsPayableOtherCurrent
|
1308000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
68785000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
68981000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
196000 | USD |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
0 | USD |
CY2020 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
15317000 | USD |
CY2020 | us-gaap |
Impairment Of Intangible Assets Excluding Goodwill
ImpairmentOfIntangibleAssetsExcludingGoodwill
|
0 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
2142000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
304000 | USD |
CY2019Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
83000 | USD |
CY2020 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
221000 | USD |
CY2019 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
83000 | USD |
CY2018 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2167000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
214000 | USD |
CY2020 | npk |
Contract With Customer Liability Decrease From Product Recall
ContractWithCustomerLiabilityDecreaseFromProductRecall
|
2073000 | USD |
CY2020 | us-gaap |
Advertising Expense
AdvertisingExpense
|
2655000 | USD |
CY2019 | us-gaap |
Advertising Expense
AdvertisingExpense
|
245000 | USD |
CY2018 | us-gaap |
Advertising Expense
AdvertisingExpense
|
181000 | USD |
CY2020 | npk |
Initial Product Return Period
InitialProductReturnPeriod
|
P60D | |
CY2019Q4 | us-gaap |
Standard Product Warranty Accrual
StandardProductWarrantyAccrual
|
263000 | USD |
CY2018Q4 | us-gaap |
Standard Product Warranty Accrual
StandardProductWarrantyAccrual
|
221000 | USD |
CY2020 | us-gaap |
Standard Product Warranty Accrual Warranties Issued
StandardProductWarrantyAccrualWarrantiesIssued
|
303000 | USD |
CY2019 | us-gaap |
Standard Product Warranty Accrual Warranties Issued
StandardProductWarrantyAccrualWarrantiesIssued
|
416000 | USD |
CY2020 | us-gaap |
Standard Product Warranty Accrual Payments
StandardProductWarrantyAccrualPayments
|
325000 | USD |
CY2019 | us-gaap |
Standard Product Warranty Accrual Payments
StandardProductWarrantyAccrualPayments
|
374000 | USD |
CY2020Q4 | us-gaap |
Standard Product Warranty Accrual
StandardProductWarrantyAccrual
|
241000 | USD |
CY2019Q4 | us-gaap |
Standard Product Warranty Accrual
StandardProductWarrantyAccrual
|
263000 | USD |
CY2020Q4 | npk |
Estimated Product Recall Payable
EstimatedProductRecallPayable
|
2769000 | USD |
CY2020 | npk |
Inventory Lifo Reserve Effect On Earnings Per Share
InventoryLifoReserveEffectOnEarningsPerShare
|
0.05 | |
CY2019 | us-gaap |
Inventory Lifo Reserve Period Charge
InventoryLIFOReservePeriodCharge
|
42000 | USD |
CY2019 | us-gaap |
Inventory Lifo Reserve Effect On Income Net
InventoryLIFOReserveEffectOnIncomeNet
|
-34000 | USD |
CY2019 | npk |
Inventory Lifo Reserve Effect On Earnings Per Share
InventoryLifoReserveEffectOnEarningsPerShare
|
0 | |
CY2018 | us-gaap |
Inventory Lifo Reserve Period Charge
InventoryLIFOReservePeriodCharge
|
-189000 | USD |
CY2020Q4 | us-gaap |
Lifo Inventory Amount
LIFOInventoryAmount
|
30515000 | USD |
CY2019Q4 | us-gaap |
Lifo Inventory Amount
LIFOInventoryAmount
|
32744000 | USD |
CY2020Q4 | us-gaap |
Excess Of Replacement Or Current Costs Over Stated Lifo Value
ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue
|
4429000 | USD |
CY2019Q4 | us-gaap |
Excess Of Replacement Or Current Costs Over Stated Lifo Value
ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue
|
3982000 | USD |
CY2020 | us-gaap |
Effect Of Lifo Inventory Liquidation On Income
EffectOfLIFOInventoryLiquidationOnIncome
|
2215000 | USD |
CY2019 | us-gaap |
Effect Of Lifo Inventory Liquidation On Income
EffectOfLIFOInventoryLiquidationOnIncome
|
85000 | USD |
CY2018 | us-gaap |
Effect Of Lifo Inventory Liquidation On Income
EffectOfLIFOInventoryLiquidationOnIncome
|
26000 | USD |
CY2020 | us-gaap |
Inventory Lifo Reserve Period Charge
InventoryLIFOReservePeriodCharge
|
-447000 | USD |
CY2020 | us-gaap |
Inventory Lifo Reserve Effect On Income Net
InventoryLIFOReserveEffectOnIncomeNet
|
349000 | USD |
CY2018 | us-gaap |
Inventory Lifo Reserve Effect On Income Net
InventoryLIFOReserveEffectOnIncomeNet
|
143000 | USD |
CY2018 | npk |
Inventory Lifo Reserve Effect On Earnings Per Share
InventoryLifoReserveEffectOnEarningsPerShare
|
0.02 | |
CY2020Q4 | us-gaap |
Fifo Inventory Amount
FIFOInventoryAmount
|
104973000 | USD |
CY2019Q4 | us-gaap |
Fifo Inventory Amount
FIFOInventoryAmount
|
95792000 | USD |
CY2020Q4 | us-gaap |
Inventory Finished Goods
InventoryFinishedGoods
|
925000 | USD |
CY2020Q4 | us-gaap |
Inventory Work In Process
InventoryWorkInProcess
|
96463000 | USD |
CY2020Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
7585000 | USD |
CY2019Q4 | us-gaap |
Inventory Finished Goods
InventoryFinishedGoods
|
751000 | USD |
CY2019Q4 | us-gaap |
Inventory Work In Process
InventoryWorkInProcess
|
87805000 | USD |
CY2019Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
7236000 | USD |
CY2020Q4 | us-gaap |
Employee Related Liabilities Current And Noncurrent
EmployeeRelatedLiabilitiesCurrentAndNoncurrent
|
7474000 | USD |
CY2020Q4 | us-gaap |
Loss Contingency Accrual Product Liability Gross
LossContingencyAccrualProductLiabilityGross
|
5618000 | USD |
CY2020Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
1187000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
970000 | USD |
CY2020Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
1019000 | USD |
CY2019Q4 | us-gaap |
Employee Related Liabilities Current And Noncurrent
EmployeeRelatedLiabilitiesCurrentAndNoncurrent
|
6341000 | USD |
CY2019Q4 | us-gaap |
Loss Contingency Accrual Product Liability Gross
LossContingencyAccrualProductLiabilityGross
|
5055000 | USD |
CY2019Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
1050000 | USD |
CY2019Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
878000 | USD |
CY2020Q4 | us-gaap |
Stock Repurchase Program Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
|
498727 | |
CY2020 | us-gaap |
Shares Paid For Tax Withholding For Share Based Compensation
SharesPaidForTaxWithholdingForShareBasedCompensation
|
344 | |
CY2019 | us-gaap |
Shares Paid For Tax Withholding For Share Based Compensation
SharesPaidForTaxWithholdingForShareBasedCompensation
|
4584 | |
CY2018 | us-gaap |
Shares Paid For Tax Withholding For Share Based Compensation
SharesPaidForTaxWithholdingForShareBasedCompensation
|
62 | |
CY2020Q4 | npk |
Share Based Compensation Arrangement Number Of Plan Participants
ShareBasedCompensationArrangementNumberOfPlanParticipants
|
29 | pure |
CY2020 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
366000 | USD |
CY2019 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
830000 | USD |
CY2018 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
469000 | USD |
CY2020Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
|
1272000 | USD |
CY2020 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
|
P3Y10M24D | |
CY2020 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-1210000 | USD |
CY2019 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-179000 | USD |
CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-280000 | USD |
CY2020 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-508000 | USD |
CY2019 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-45000 | USD |
CY2018 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
159000 | USD |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-1718000 | USD |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-224000 | USD |
CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-121000 | USD |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
13030000 | USD |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
11766000 | USD |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
12450000 | USD |
CY2020 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
12932000 | USD |
CY2019 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
11453000 | USD |
CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
10996000 | USD |
CY2020 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1816000 | USD |
CY2019 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
537000 | USD |
CY2018 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1575000 | USD |
CY2020 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
14748000 | USD |
CY2019 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
11990000 | USD |
CY2018 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
12571000 | USD |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | pure |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | pure |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | pure |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.017 | pure |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.007 | pure |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.026 | pure |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
0.001 | pure |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
0.001 | pure |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
0.006 | pure |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.009 | pure |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.009 | pure |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.008 | pure |
CY2020 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.217 | pure |
CY2019 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.225 | pure |
CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.238 | pure |
CY2020Q4 | npk |
Deferred Tax Assets Insurance
DeferredTaxAssetsInsurance
|
978000 | USD |
CY2019Q4 | npk |
Deferred Tax Assets Insurance
DeferredTaxAssetsInsurance
|
947000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences
|
813000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences
|
662000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Inventory
DeferredTaxAssetsInventory
|
754000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Inventory
DeferredTaxAssetsInventory
|
642000 | USD |
CY2020Q4 | npk |
Deferred Tax Assets Operating Loss Carryforwards And Tax Credit Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwardsStateAndLocal
|
825000 | USD |
CY2019Q4 | npk |
Deferred Tax Assets Operating Loss Carryforwards And Tax Credit Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwardsStateAndLocal
|
0 | USD |
CY2020Q4 | npk |
Deferred Tax Assets Product Recall
DeferredTaxAssetsProductRecall
|
610000 | USD |
CY2019Q4 | npk |
Deferred Tax Assets Product Recall
DeferredTaxAssetsProductRecall
|
0 | USD |
CY2020Q4 | npk |
Deferred Tax Assets Payroll Taxes
DeferredTaxAssetsPayrollTaxes
|
414000 | USD |
CY2019Q4 | npk |
Deferred Tax Assets Payroll Taxes
DeferredTaxAssetsPayrollTaxes
|
0 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
203000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
162000 | USD |
CY2020Q4 | npk |
Deferred Tax Assets Environmental
DeferredTaxAssetsEnvironmental
|
214000 | USD |
CY2019Q4 | npk |
Deferred Tax Assets Environmental
DeferredTaxAssetsEnvironmental
|
227000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
330000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
200000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
5141000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
2840000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
4621000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
2840000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
|
1585000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
|
1391000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
1000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
131000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Tax Deferred Income
DeferredTaxLiabilitiesTaxDeferredIncome
|
41000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Tax Deferred Income
DeferredTaxLiabilitiesTaxDeferredIncome
|
37000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1627000 | USD |
CY2019Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1559000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
2994000 | USD |
CY2019Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
1281000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
520000 | USD |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2521000 | USD |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2237000 | USD |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
320000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
944000 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
453000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
46000 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
1519000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
706000 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
55000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2521000 | USD |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2237000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
142000 | USD |
CY2019 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
298000 | USD |
CY2018 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
14000 | USD |
CY2020Q4 | npk |
Number Of Entity Employees Union Members
NumberOfEntityEmployeesUnionMembers
|
231 | pure |
CY2020Q4 | npk |
Percentage Of Entity Employees Union Members
PercentageOfEntityEmployeesUnionMembers
|
0.24 | pure |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
970000 | USD |
CY2019Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
1050000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear
|
180000 | USD |
CY2019 | npk |
Shortterm And Variable Lease Cost
ShorttermAndVariableLeaseCost
|
225000 | USD |
CY2020 | us-gaap |
Lease Cost
LeaseCost
|
1181000 | USD |
CY2019 | us-gaap |
Lease Cost
LeaseCost
|
916000 | USD |
CY2020 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
1182000 | USD |
CY2019 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
1114000 | USD |
CY2018 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
1050000 | USD |
CY2020 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
1181000 | USD |
CY2019 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
916000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y10M24D | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.056 | pure |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due In Second Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear
|
143000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due In Third Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear
|
130000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due In Fourth Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear
|
118000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due In Fifth Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear
|
106000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Undiscounted Due After Fifth Year
AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear
|
293000 | USD |
CY2020Q4 | us-gaap |
Accrual For Environmental Loss Contingencies Gross
AccrualForEnvironmentalLossContingenciesGross
|
970000 | USD |
CY2020 | us-gaap |
Revenues
Revenues
|
352627000 | USD |
CY2020 | us-gaap |
Gross Profit
GrossProfit
|
84922000 | USD |
CY2020 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
56196000 | USD |
CY2020Q4 | us-gaap |
Assets
Assets
|
433170000 | USD |
CY2020 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
3005000 | USD |
CY2020 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2621000 | USD |
CY2019 | us-gaap |
Revenues
Revenues
|
308510000 | USD |
CY2019 | us-gaap |
Gross Profit
GrossProfit
|
71925000 | USD |
CY2019 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
46380000 | USD |
CY2019Q4 | us-gaap |
Assets
Assets
|
410253000 | USD |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
3689000 | USD |
CY2019 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
3138000 | USD |
CY2018 | us-gaap |
Revenues
Revenues
|
323317000 | USD |
CY2018 | us-gaap |
Gross Profit
GrossProfit
|
75883000 | USD |
CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
47902000 | USD |
CY2018Q4 | us-gaap |
Assets
Assets
|
413618000 | USD |
CY2018 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
6219000 | USD |
CY2018 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
8686000 | USD |
CY2019Q1 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
3832000 | USD |
CY2020 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
729000 | USD |
CY2019 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
691000 | USD |
CY2020 | npk |
Shortterm And Variable Lease Cost
ShorttermAndVariableLeaseCost
|
452000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
741000 | USD |
CY2020Q3 | us-gaap |
Gross Profit
GrossProfit
|
20718000 | USD |
CY2020Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
12138000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
745000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
599000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
497000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
426000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
1069000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
4077000 | USD |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
714000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
3363000 | USD |
CY2020 | us-gaap |
Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
|
1967000 | USD |
CY2019 | us-gaap |
Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
|
1788000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Next Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
|
1843000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
|
1837000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
|
1837000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
|
1837000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Five Years
LessorOperatingLeasePaymentsToBeReceivedFiveYears
|
1837000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Thereafter
LessorOperatingLeasePaymentsToBeReceivedThereafter
|
12859000 | USD |
CY2020Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
|
22050000 | USD |
CY2020Q1 | us-gaap |
Revenues
Revenues
|
65636000 | USD |
CY2020Q1 | us-gaap |
Gross Profit
GrossProfit
|
16117000 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
8222000 | USD |
CY2020Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
8222000 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.17 | |
CY2020Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.17 | |
CY2020Q2 | us-gaap |
Revenues
Revenues
|
87132000 | USD |
CY2020Q2 | us-gaap |
Gross Profit
GrossProfit
|
21743000 | USD |
CY2020Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
12657000 | USD |
CY2020Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2020Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
12657000 | USD |
CY2020Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.80 | |
CY2020Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2020Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.80 | |
CY2020Q3 | us-gaap |
Revenues
Revenues
|
93937000 | USD |
CY2020Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2020Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
12138000 | USD |
CY2020Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.72 | |
CY2020Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2020Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.72 | |
CY2020Q4 | us-gaap |
Revenues
Revenues
|
105922000 | USD |
CY2020Q4 | us-gaap |
Gross Profit
GrossProfit
|
26344000 | USD |
CY2020Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
13941000 | USD |
CY2020Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2020Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
13941000 | USD |
CY2020Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.98 | |
CY2020Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2020Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.98 | |
CY2020 | us-gaap |
Revenues
Revenues
|
352627000 | USD |
CY2020 | us-gaap |
Gross Profit
GrossProfit
|
84922000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
46958000 | USD |
CY2020 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46958000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
6.67 | |
CY2020 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2020 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
6.67 | |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
63850000 | USD |
CY2019Q1 | us-gaap |
Gross Profit
GrossProfit
|
12492000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
5951000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2019Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
5951000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
0.85 | |
CY2019Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2019Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.85 | |
CY2019Q2 | us-gaap |
Revenues
Revenues
|
71745000 | USD |
CY2019Q2 | us-gaap |
Gross Profit
GrossProfit
|
14676000 | USD |
CY2019Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
8153000 | USD |
CY2019Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
3000 | USD |
CY2019Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
8156000 | USD |
CY2019Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.16 | |
CY2019Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2019Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.16 | |
CY2019Q3 | us-gaap |
Revenues
Revenues
|
78006000 | USD |
CY2019Q3 | us-gaap |
Gross Profit
GrossProfit
|
23847000 | USD |
CY2019Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
14712000 | USD |
CY2019Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
1677000 | USD |
CY2019Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
16389000 | USD |
CY2019Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
2.09 | |
CY2019Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0.24 | |
CY2019Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
2.33 | |
CY2019Q4 | us-gaap |
Revenues
Revenues
|
94909000 | USD |
CY2019Q4 | us-gaap |
Gross Profit
GrossProfit
|
20910000 | USD |
CY2019Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
11724000 | USD |
CY2019Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2019Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
11724000 | USD |
CY2019Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
1.68 | |
CY2019Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0 | |
CY2019Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.68 | |
CY2019 | us-gaap |
Revenues
Revenues
|
308510000 | USD |
CY2019 | us-gaap |
Gross Profit
GrossProfit
|
71925000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
40540000 | USD |
CY2019 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
1680000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
42220000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations Per Basic And Diluted Share
IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
|
5.78 | |
CY2019 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare
|
0.24 | |
CY2019 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
6.02 | |
CY2020Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
1247000 | USD |
CY2020Q4 | us-gaap |
Notes And Loans Receivable Net Current
NotesAndLoansReceivableNetCurrent
|
2869000 | USD |
CY2019Q4 | us-gaap |
Notes And Loans Receivable Net Current
NotesAndLoansReceivableNetCurrent
|
2853000 | USD |
CY2019 | npk |
Business Combination Pro Forma Information Revenue Net Of Sales Deductions Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationRevenueNetOfSalesDeductionsOfAcquireeSinceAcquisitionDateActual
|
-38000 | USD |
CY2019 | us-gaap |
Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual
BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
|
-1103000 | USD |
CY2020Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
7399000 | USD |
CY2019Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
7182000 | USD |