2020 Q4 Form 10-K Financial Statement

#000155837021002002 Filed on February 26, 2021

View on sec.gov

Income Statement

Concept 2020 Q4 2019 Q4 2019 Q3
Revenue $40.99M $37.97M $43.56M
YoY Change 7.97% 9.63% 23.5%
Cost Of Revenue $27.82M $28.19M $30.08M
YoY Change -1.31% 0.61% 7.11%
Gross Profit $13.17M $9.773M $13.48M
YoY Change 34.77% 47.63% 87.26%
Gross Profit Margin 32.13% 25.74% 30.95%
Selling, General & Admin $3.160M $3.260M $2.928M
YoY Change -3.07% 23.95% 4.95%
% of Gross Profit 23.99% 33.36% 21.72%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $5.220M $4.970M $4.250M
YoY Change 5.03% 8.28% -4.28%
% of Gross Profit 39.63% 50.85% 31.52%
Operating Expenses $3.160M $3.260M $2.928M
YoY Change -3.07% 23.95% 4.95%
Operating Profit $10.01M $6.513M $10.56M
YoY Change 53.71% 63.23% 139.34%
Interest Expense -$60.00K -$60.00K $61.00K
YoY Change 0.0% 20.0% -187.14%
% of Operating Profit -0.6% -0.92% 0.58%
Other Income/Expense, Net $50.00K $440.0K $416.0K
YoY Change -88.64% -12.0% -16.8%
Pretax Income $8.450M $5.960M $10.97M
YoY Change 41.78% 34.23% 126.67%
Income Tax $1.200M $970.0K $1.069M
% Of Pretax Income 14.2% 16.28% 9.74%
Net Earnings $7.254M $4.993M $9.902M
YoY Change 45.28% 18.04% 117.63%
Net Earnings / Revenue 17.7% 13.15% 22.73%
Basic Earnings Per Share $1.29 $0.89 $1.76
Diluted Earnings Per Share $1.28 $0.89 $1.76
COMMON SHARES
Basic Shares Outstanding 5.631M 5.613M
Diluted Shares Outstanding 5.622M

Balance Sheet

Concept 2020 Q4 2019 Q4 2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $83.60M $54.30M $80.70M
YoY Change 53.96% -19.2% -3.0%
Cash & Equivalents $83.56M $54.26M $80.73M
Short-Term Investments
Other Short-Term Assets $2.200M $1.700M $1.700M
YoY Change 29.41% 0.0% -26.09%
Inventory $15.21M $13.39M $13.20M
Prepaid Expenses
Receivables $22.98M $22.95M $23.20M
Other Receivables $0.00 $500.0K $0.00
Total Short-Term Assets $124.0M $92.74M $118.8M
YoY Change 33.71% -8.55% 1.71%
LONG-TERM ASSETS
Property, Plant & Equipment $152.5M $150.7M $154.6M
YoY Change 1.18% 5.52% 20.12%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $415.0K $423.0K $500.0K
YoY Change -1.89% -15.4% -16.67%
Total Long-Term Assets $155.1M $154.3M $155.0M
YoY Change 0.52% 7.7% 19.99%
TOTAL ASSETS
Total Short-Term Assets $124.0M $92.74M $118.8M
Total Long-Term Assets $155.1M $154.3M $155.0M
Total Assets $279.1M $247.0M $273.8M
YoY Change 12.98% 0.97% 11.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $4.592M $4.430M $6.500M
YoY Change 3.66% -3.7% -26.14%
Accrued Expenses $5.809M $3.735M $4.800M
YoY Change 55.53% 9.85% 60.0%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $11.59M $9.459M $11.30M
YoY Change 22.51% 18.24% -4.24%
LONG-TERM LIABILITIES
Long-Term Debt $0.00 $0.00 $0.00
YoY Change
Other Long-Term Liabilities $1.757M $1.362M $3.500M
YoY Change 29.0% -2.71% 150.0%
Total Long-Term Liabilities $1.757M $1.362M $3.500M
YoY Change 29.0% -2.71% 150.0%
TOTAL LIABILITIES
Total Short-Term Liabilities $11.59M $9.459M $11.30M
Total Long-Term Liabilities $1.757M $1.362M $3.500M
Total Liabilities $35.91M $29.91M $31.20M
YoY Change 20.07% 37.81% 16.85%
SHAREHOLDERS EQUITY
Retained Earnings $268.2M $243.6M
YoY Change 10.11%
Common Stock $30.12M $28.13M
YoY Change 7.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $243.2M $217.1M $242.7M
YoY Change
Total Liabilities & Shareholders Equity $279.1M $247.0M $273.8M
YoY Change 12.98% 0.96% 11.3%

Cashflow Statement

Concept 2020 Q4 2019 Q4 2019 Q3
OPERATING ACTIVITIES
Net Income $7.254M $4.993M $9.902M
YoY Change 45.28% 18.04% 117.63%
Depreciation, Depletion And Amortization $5.220M $4.970M $4.250M
YoY Change 5.03% 8.28% -4.28%
Cash From Operating Activities $16.67M $10.83M $16.14M
YoY Change 53.92% 56.96% 18.59%
INVESTING ACTIVITIES
Capital Expenditures -$3.510M -$6.680M -$8.060M
YoY Change -47.46% -69.73% -34.52%
Acquisitions
YoY Change
Other Investing Activities $270.0K $360.0K -$260.0K
YoY Change -25.0% 140.0% -192.86%
Cash From Investing Activities -$3.230M -$6.310M -$8.330M
YoY Change -48.81% -71.23% -30.76%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -1.180M -30.99M -760.0K
YoY Change -96.19% 3305.49% 0.0%
NET CHANGE
Cash From Operating Activities 16.67M 10.83M 16.14M
Cash From Investing Activities -3.230M -6.310M -8.330M
Cash From Financing Activities -1.180M -30.99M -760.0K
Net Change In Cash 12.26M -26.47M 7.050M
YoY Change -146.32% 66.06% 759.76%
FREE CASH FLOW
Cash From Operating Activities $16.67M $10.83M $16.14M
Capital Expenditures -$3.510M -$6.680M -$8.060M
Free Cash Flow $20.18M $17.51M $24.20M
YoY Change 15.25% -39.56% -6.64%

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StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpenses
81000
CY2020 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
1915000
CY2020 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
557000
CY2020 us-gaap Dividends Common Stock
DividendsCommonStock
3603000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
28223000
CY2020 us-gaap Other Comprehensive Income Foreign Currency Translation Adjustment Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTaxPortionAttributableToParent
0
CY2020 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
1000
CY2020 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
28224000
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
243192000
CY2020 us-gaap Profit Loss
ProfitLoss
28223000
CY2019 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
33058000
CY2019 us-gaap Profit Loss
ProfitLoss
26056000
CY2018 us-gaap Profit Loss
ProfitLoss
19685000
CY2018 us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
14000
CY2020 us-gaap Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
4313000
CY2019 us-gaap Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
4848000
CY2020 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
58575000
CY2018 us-gaap Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
20000
CY2020 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
-3000
CY2019 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
-117000
CY2020 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-462000
CY2019 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-439000
CY2018 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-624000
CY2018 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
1000
CY2020 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
2579000
CY2019 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
-165000
CY2018 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
438000
CY2020 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
301000
CY2019 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-29000
CY2018 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-85000
CY2020 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
19611000
CY2019 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
17617000
CY2018 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
17603000
CY2020 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
1550000
CY2019 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
930000
CY2020 us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
5000
CY2019 us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
9000
CY2020 us-gaap Share Based Compensation
ShareBasedCompensation
1915000
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
1524000
CY2018 us-gaap Share Based Compensation
ShareBasedCompensation
1489000
CY2020 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-1109000
CY2019 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
3346000
CY2018 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
3129000
CY2020 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
1390000
CY2019 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
542000
CY2018 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-700000
CY2020 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
106000
CY2019 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
447000
CY2018 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
-1377000
CY2019 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
47011000
CY2018 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
38735000
CY2020 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
17133000
CY2019 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
27100000
CY2018 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
53762000
CY2020 us-gaap Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
8392000
CY2020 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
331000
CY2019 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
558000
CY2018 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
605000
CY2020 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-25194000
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-26542000
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-53157000
CY2020 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3603000
CY2018 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
3022000
CY2018 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
251000
CY2020 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
81000
CY2019 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
75000
CY2018 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
73000
CY2020 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
557000
CY2019 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
444000
CY2018 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
411000
CY2020 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-4079000
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-33427000
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-3360000
CY2020 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
29302000
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-12958000
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-17782000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
54260000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
67218000
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
85000000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
83562000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
54260000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
67218000
CY2020 us-gaap Use Of Estimates
UseOfEstimates
<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:36pt;text-indent:-36pt;margin:0pt 0pt 10pt 0pt;">(c)         Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 10pt 36pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“US GAAP”) requires management to make estimates and judgments that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates and judgments.</p>
CY2020 us-gaap Interest Paid Net
InterestPaidNet
152000
CY2019 us-gaap Interest Paid Net
InterestPaidNet
150000
CY2018 us-gaap Interest Paid Net
InterestPaidNet
179000
CY2020 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
975000
CY2019 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
445000
CY2018 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
331000
CY2020 uslm Shipping And Handling Revenues
ShippingAndHandlingRevenues
28373000
CY2019 uslm Shipping And Handling Revenues
ShippingAndHandlingRevenues
28397000
CY2018 uslm Shipping And Handling Revenues
ShippingAndHandlingRevenues
25637000
CY2020Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
398000
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
361000
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
361000
CY2018Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
430000
CY2020 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
60000
CY2019 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
102000
CY2020 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
23000
CY2019 us-gaap Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
171000
CY2020Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
398000
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
361000
CY2020Q4 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
4279000
CY2019Q4 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
4546000
CY2020Q4 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
2866000
CY2019Q4 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
1954000
CY2020Q4 uslm Inventory Raw Materials And Finished Goods Net Of Reserves
InventoryRawMaterialsAndFinishedGoodsNetOfReserves
7145000
CY2019Q4 uslm Inventory Raw Materials And Finished Goods Net Of Reserves
InventoryRawMaterialsAndFinishedGoodsNetOfReserves
6500000
CY2020Q4 us-gaap Other Inventory Net Of Reserves
OtherInventoryNetOfReserves
8065000
CY2019Q4 us-gaap Other Inventory Net Of Reserves
OtherInventoryNetOfReserves
6888000
CY2020Q4 us-gaap Inventory Net
InventoryNet
15210000
CY2019Q4 us-gaap Inventory Net
InventoryNet
13388000
CY2020Q4 us-gaap Construction In Progress Gross
ConstructionInProgressGross
6308000
CY2019Q4 us-gaap Construction In Progress Gross
ConstructionInProgressGross
16813000
CY2019 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
0
CY2020 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
0
CY2020 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
380000
CY2019 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
1303000
CY2020 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
1550000
CY2019 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
930000
CY2020Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
1520000
CY2019Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
1482000
CY2020Q4 uslm Asset Retirement Obligation Assets Not Fully Depreciated
AssetRetirementObligationAssetsNotFullyDepreciated
775000
CY2020 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
52000
CY2019 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
93000
CY2020 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
90000
CY2019 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
86000
CY2018 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
84000
CY2020Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
2340000
CY2019Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
1925000
CY2020Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
990000
CY2020Q4 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
985000
CY2019Q4 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
914000
CY2020Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
1494000
CY2019Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
896000
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
5809000
CY2019Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
3735000
CY2020 us-gaap Environmental Costs Recognized Capitalized In Period
EnvironmentalCostsRecognizedCapitalizedInPeriod
730000
CY2019 us-gaap Environmental Costs Recognized Capitalized In Period
EnvironmentalCostsRecognizedCapitalizedInPeriod
1156000
CY2018 us-gaap Environmental Costs Recognized Capitalized In Period
EnvironmentalCostsRecognizedCapitalizedInPeriod
1152000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
28223000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
26056000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
19685000
CY2020 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
5629425
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
5612048
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
5595384
CY2020 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
10438
CY2019 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
9090
CY2018 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
6993
CY2020 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
5639863
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
5621138
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
5602377
CY2020 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
5.01
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
4.64
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
3.52
CY2020 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
5.00
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
4.64
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
3.51
CY2020 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.64
CY2019 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
5.89
CY2018 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.54
CY2019 uslm Common Stock Special Dividends Per Share Cash Paid
CommonStockSpecialDividendsPerShareCashPaid
5.35
CY2018 us-gaap Income Tax Reconciliation Nondeductible Expense Depletion
IncomeTaxReconciliationNondeductibleExpenseDepletion
-1199000
CY2019Q4 us-gaap Long Term Debt
LongTermDebt
0
CY2020Q4 us-gaap Long Term Debt
LongTermDebt
0
CY2020Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P3Y
CY2020 us-gaap Lessee Operating Lease Existence Of Option To Extend
LesseeOperatingLeaseExistenceOfOptionToExtend
true
CY2019Q1 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.035
CY2020Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.012
CY2020 us-gaap Lease Cost
LeaseCost
1706000
CY2019 us-gaap Lease Cost
LeaseCost
2133000
CY2018 us-gaap Lease Cost
LeaseCost
2260000
CY2020 us-gaap Lease Cost
LeaseCost
1706000
CY2019 us-gaap Lease Cost
LeaseCost
2133000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
1130000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
599000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
298000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
173000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
36000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
54000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
2290000
CY2020Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
73000
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
2217000
CY2020 us-gaap Operating Lease Payments
OperatingLeasePayments
1486000
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
1664000
CY2020 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
314000
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
857000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
28223000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
26056000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
19685000
CY2020 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent
1000
CY2019 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent
16000
CY2018 us-gaap Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent
-128000
CY2019 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
4000
CY2018 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
-29000
CY2020 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
28224000
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
26068000
CY2018 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
19586000
CY2020 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
1537000
CY2019 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
-4000
CY2018 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
1863000
CY2020 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
4312000
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
4848000
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
20000
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
5849000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
4844000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
1883000
CY2020 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
7155000
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
6489000
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2018 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
4529000
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2020 us-gaap Income Tax Reconciliation Nondeductible Expense Depletion
IncomeTaxReconciliationNondeductibleExpenseDepletion
-1266000
CY2020 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion
-0.037
CY2019 us-gaap Income Tax Reconciliation Nondeductible Expense Depletion
IncomeTaxReconciliationNondeductibleExpenseDepletion
-1200000
CY2019 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion
-0.039
CY2018 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion
-0.056
CY2019 uslm Income Tax Reconciliation Nondeductible Expenses Research And Development
IncomeTaxReconciliationNondeductibleExpensesResearchAndDevelopment
-1155000
CY2019 uslm Effective Income Tax Rate Reconciliation Nondeductible Expenses Research And Development
EffectiveIncomeTaxRateReconciliationNondeductibleExpensesResearchAndDevelopment
-0.037
CY2018 uslm Income Tax Reconciliation Nondeductible Expenses Research And Development
IncomeTaxReconciliationNondeductibleExpensesResearchAndDevelopment
-1775000
CY2018 uslm Effective Income Tax Rate Reconciliation Nondeductible Expenses Research And Development
EffectiveIncomeTaxRateReconciliationNondeductibleExpensesResearchAndDevelopment
-0.082
CY2020 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-262000
CY2020 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
-0.008
CY2019 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
155000
CY2019 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
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