$FSTR
FOSTER L B CO Stock $fstr

$fstr Overview Financials Valuation SEC Filings Company Website

2019 Q2 Form 10-Q Financial Statement

#000035282519000037 Filed on July 31, 2019

Income Statement

Concept	2019 Q2	2018 Q2	2018 Q1
Revenue	$190.7M	$172.9M	$122.5M
YoY Change	10.3%	19.35%	3.16%
Cost Of Revenue	$163.8M	$139.8M	$100.3M
YoY Change	17.15%	19.58%	2.87%
Gross Profit	$36.63M	$33.06M	$22.19M
YoY Change	10.79%	18.39%	4.48%
Gross Profit Margin	19.21%	19.12%	18.12%
Selling, General & Admin	$22.86M	$23.37M	$20.46M
YoY Change	-2.2%	13.56%	6.4%
% of Gross Profit	62.4%	70.68%	92.19%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.768M	$2.938M	$2.944M
YoY Change	-5.79%	-9.46%	-10.3%
% of Gross Profit	7.56%	8.89%	13.27%
Operating Expenses	$22.86M	$23.37M	$20.46M
YoY Change	-2.2%	13.56%	6.4%
Operating Profit	$16.35M	$12.71M	$3.951M
YoY Change	28.65%	48.52%	96.18%
Interest Expense	-$1.600M	$1.654M	$1.958M
YoY Change	-196.74%	-24.16%	-7.12%
% of Operating Profit	-9.79%	13.01%	49.56%
Other Income/Expense, Net	$252.0K	-$128.0K	$608.0K
YoY Change	-296.88%	-811.11%	-12260.0%
Pretax Income	$11.25M	$6.162M	-$1.333M
YoY Change	82.55%	66.95%	-33.42%
Income Tax	$1.685M	$728.0K	$525.0K
% Of Pretax Income	14.98%	11.81%
Net Earnings	$9.564M	$5.434M	-$1.858M
YoY Change	76.0%	68.97%	-23.63%
Net Earnings / Revenue	5.02%	3.14%	-1.52%
Basic Earnings Per Share	$0.92	$0.52	-$0.18
Diluted Earnings Per Share	$0.90	$0.52	-$0.18
COMMON SHARES
Basic Shares Outstanding	10.42M shares	10.37M shares	10.35M shares
Diluted Shares Outstanding	10.64M shares	10.48M shares	10.35M shares

Balance Sheet

Concept	2019 Q2	2018 Q2	2018 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$12.00M	$13.30M	$11.00M
YoY Change	-9.77%	-62.54%	-67.46%
Cash & Equivalents	$12.00M	$13.27M	$10.98M
Short-Term Investments
Other Short-Term Assets	$6.990M	$12.09M	$12.42M
YoY Change	-42.18%	81.86%	-31.39%
Inventory	$134.4M	$101.3M	$101.1M
Prepaid Expenses
Receivables	$136.1M	$125.6M	$101.7M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$252.1M	$223.4M	$201.5M
YoY Change	12.88%	9.02%	-4.53%
LONG-TERM ASSETS
Property, Plant & Equipment	$84.44M	$89.47M	$93.89M
YoY Change	-5.62%	-11.9%	-9.28%
Goodwill	$19.22M	$19.57M	$20.13M
YoY Change	-1.77%	0.69%
Intangibles
YoY Change
Long-Term Investments		$159.0K	$159.0K
YoY Change		-96.0%	-95.82%
Other Assets	$1.355M	$1.416M	$1.711M
YoY Change	-4.31%	-44.58%	-38.89%
Total Long-Term Assets	$164.7M	$164.3M	$171.9M
YoY Change	0.25%	-12.67%	-10.05%
TOTAL ASSETS
Total Short-Term Assets	$252.1M	$223.4M	$201.5M
Total Long-Term Assets	$164.7M	$164.3M	$171.9M
Total Assets	$416.8M	$387.6M	$373.4M
YoY Change	7.52%	-1.37%	-7.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$78.54M	$73.67M	$63.60M
YoY Change	6.61%	28.88%	13.77%
Accrued Expenses	$13.13M	$9.208M	$10.20M
YoY Change	42.55%	4.36%	-58.04%
Deferred Revenue	$8.543M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$3.100M	$600.0K	$700.0K
YoY Change	416.67%	-94.06%	-93.14%
Total Short-Term Liabilities	$123.6M	$114.4M	$99.65M
YoY Change	7.97%	15.04%	2.42%
LONG-TERM LIABILITIES
Long-Term Debt	$88.00M	$98.40M	$101.8M
YoY Change	-10.57%	-23.06%	-29.84%
Other Long-Term Liabilities	$16.27M	$17.35M	$17.66M
YoY Change	-6.26%	2.61%	5.13%
Total Long-Term Liabilities	$16.27M	$17.35M	$17.66M
YoY Change	-6.26%	2.61%	-89.09%
TOTAL LIABILITIES
Total Short-Term Liabilities	$123.6M	$114.4M	$99.65M
Total Long-Term Liabilities	$16.27M	$17.35M	$17.66M
Total Liabilities	$139.8M	$131.8M	$117.3M
YoY Change	6.1%	13.23%	-56.63%
SHAREHOLDERS EQUITY
Retained Earnings	$128.2M	$140.4M	$135.5M
YoY Change	-8.68%	4.56%
Common Stock	$111.0K	$111.0K	$111.0K
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$16.84M	$18.18M	$18.18M
YoY Change	-7.37%	-2.67%
Treasury Stock Shares	695.7K shares	750.4K shares	750.4K shares
Shareholders Equity	$136.2M	$157.9M	$154.0M
YoY Change
Total Liabilities & Shareholders Equity	$416.8M	$387.6M	$373.4M
YoY Change	7.52%	-1.37%	-7.16%

Cashflow Statement

Concept	2019 Q2	2018 Q2	2018 Q1
OPERATING ACTIVITIES
Net Income	$9.564M	$5.434M	-$1.858M
YoY Change	76.0%	68.97%	-23.63%
Depreciation, Depletion And Amortization	$2.768M	$2.938M	$2.944M
YoY Change	-5.79%	-9.46%	-10.3%
Cash From Operating Activities	$4.120M	$5.310M	$2.591M
YoY Change	-22.41%	-72.3%	-75.89%
INVESTING ACTIVITIES
Capital Expenditures	-$1.280M	-$1.100M	$723.0K
YoY Change	16.36%	-4.35%	-79.06%
Acquisitions
YoY Change
Other Investing Activities	$20.00K	$2.080M	$10.00K
YoY Change	-99.04%		-92.86%
Cash From Investing Activities	-$1.260M	$980.0K	-$714.0K
YoY Change	-228.57%	-186.73%	-78.46%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$310.0K
YoY Change			219.59%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	40.00K	-3.370M	-$27.87M
YoY Change	-101.19%	-80.5%	533.91%
NET CHANGE
Cash From Operating Activities	4.120M	5.310M	$2.591M
Cash From Investing Activities	-1.260M	980.0K	-$714.0K
Cash From Financing Activities	40.00K	-3.370M	-$27.87M
Net Change In Cash	2.900M	2.920M	-$26.69M
YoY Change	-0.68%	284.21%	-979.25%
FREE CASH FLOW
Cash From Operating Activities	$4.120M	$5.310M	$2.591M
Capital Expenditures	-$1.280M	-$1.100M	$723.0K
Free Cash Flow	$5.400M	$6.410M	$1.868M
YoY Change	-15.76%	-68.45%	-74.39%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Type DocumentType	10-Q
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Entity Registrant Name EntityRegistrantName	FOSTER L B CO
	dei	Entity Central Index Key EntityCentralIndexKey	0000352825
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-10436
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	25-1324733
	dei	Entity Address Address Line1 EntityAddressAddressLine1	415 Holiday Drive
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 100
	dei	Entity Address City Or Town EntityAddressCityOrTown	Pittsburgh
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15220
	dei	City Area Code CityAreaCode	412
	dei	Local Phone Number LocalPhoneNumber	928-3400
	dei	Security12b Title Security12bTitle	Common stock, par value $0.01
	dei	Trading Symbol TradingSymbol	FSTR
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2019Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	10587191	shares
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12001000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10282000	USD
CY2019Q2	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	98684000	USD
CY2018Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	86123000	USD
CY2019Q2	us-gaap	Inventory Net InventoryNet	134448000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	124504000	USD
CY2019Q2	us-gaap	Other Assets Current OtherAssetsCurrent	6990000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	5763000	USD
CY2019Q2	us-gaap	Assets Current AssetsCurrent	252123000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	226672000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	84441000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	86857000	USD
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13235000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	19219000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	19258000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46437000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	49836000	USD
CY2019Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1355000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	626000	USD
CY2019Q2	us-gaap	Assets Assets	416810000	USD
CY2018Q4	us-gaap	Assets Assets	383249000	USD
CY2019Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	78538000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	78269000	USD
CY2019Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	8543000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	6619000	USD
CY2019Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	10538000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	12993000	USD
CY2019Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	1678000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	2057000	USD
CY2019Q2	fstr	Accrued Legal Settlement Current AccruedLegalSettlementCurrent	8000000	USD
CY2018Q4	fstr	Accrued Legal Settlement Current AccruedLegalSettlementCurrent	10000000	USD
CY2019Q2	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	3142000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	629000	USD
CY2019Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	13126000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	13624000	USD
CY2019Q2	us-gaap	Liabilities Current LiabilitiesCurrent	123565000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	124191000	USD
CY2019Q2	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	87973000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	74353000	USD
CY2019Q2	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	4884000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	5287000	USD
CY2019Q2	fstr	Accrued Legal Settlement Non Current AccruedLegalSettlementNonCurrent	38000000	USD
CY2018Q4	fstr	Accrued Legal Settlement Non Current AccruedLegalSettlementNonCurrent	40000000	USD
CY2019Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	9901000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	16266000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	17299000	USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2019Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	11115779	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	11115779	shares
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10420092	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10366007	shares
CY2019Q2	us-gaap	Common Stock Value CommonStockValue	111000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	111000	USD
CY2019Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	48159000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	48040000	USD
CY2019Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	128211000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	114324000	USD
CY2019Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	695687	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	749772	shares
CY2019Q2	us-gaap	Treasury Stock Value TreasuryStockValue	16841000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	18165000	USD
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23419000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-22191000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	136221000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	122119000	USD
CY2019Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	416810000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	383249000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	200933000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	172890000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	351402000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	295344000	USD
CY2019Q2	us-gaap	Cost Of Revenue CostOfRevenue	163805000	USD
CY2018Q2	us-gaap	Cost Of Revenue CostOfRevenue	139827000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	285112000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	240089000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	37128000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	33063000	USD
	us-gaap	Gross Profit GrossProfit	66290000	USD
	us-gaap	Gross Profit GrossProfit	55255000	USD
CY2019Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	22855000	USD
CY2018Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23368000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	44772000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	43826000	USD
CY2019Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1679000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1775000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3391000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3560000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1597000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1630000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2952000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-3517000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	252000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-128000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	402000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	477000	USD
CY2019Q2	fstr	Total Operating Expenses TotalOperatingExpenses	25879000	USD
CY2018Q2	fstr	Total Operating Expenses TotalOperatingExpenses	26901000	USD
	fstr	Total Operating Expenses TotalOperatingExpenses	50713000	USD
	fstr	Total Operating Expenses TotalOperatingExpenses	50426000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11249000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6162000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	15577000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4829000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1685000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	728000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2323000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1253000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	9564000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5434000	USD
	us-gaap	Net Income Loss NetIncomeLoss	13254000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3576000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.92
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.90
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	9564000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5434000	USD
	us-gaap	Net Income Loss NetIncomeLoss	13254000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3576000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-675000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2785000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	378000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2761000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-1132000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	298000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-1158000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1036000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	92000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	141000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	185000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	255000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1715000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2346000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-595000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1470000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7849000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3088000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	12659000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2106000	USD
	us-gaap	Net Income Loss NetIncomeLoss	13254000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3576000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-401000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1395000	USD
	us-gaap	Depreciation Depreciation	5540000	USD
	us-gaap	Depreciation Depreciation	5882000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	3391000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	3560000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	21000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-3000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	7000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-394000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2034000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1904000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	12402000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	20060000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9842000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5251000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	612000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2228000	USD
	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	3077000	USD
	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	1823000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	490000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-460000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	895000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	21574000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1940000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	2110000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-2487000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-1831000	USD
	fstr	Increase Decrease In Accrued Settlement IncreaseDecreaseInAccruedSettlement	-4000000	USD
	fstr	Increase Decrease In Accrued Settlement IncreaseDecreaseInAccruedSettlement	0	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-1933000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	1145000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-1211000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-118000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-9429000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7902000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	76000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2086000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3848000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1816000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3772000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	270000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	97269000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	99925000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	113402000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	68995000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	836000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	591000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	310000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	14706000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-31240000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1339000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1719000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-24407000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10282000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	37678000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12001000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13271000	USD
	us-gaap	Interest Paid Net InterestPaidNet	2492000	USD
	us-gaap	Interest Paid Net InterestPaidNet	3347000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	5395000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	3304000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	127258000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	9564000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	92000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-675000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-1132000	USD
CY2019Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	15745	shares
CY2019Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	65000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1179000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	136221000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	153981000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5434000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	141000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2785000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	298000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	822000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	157891000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	122119000	USD
	us-gaap	Net Income Loss NetIncomeLoss	13254000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	185000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	378000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-1158000	USD
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	54085	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	591000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2034000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	136221000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	154496000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3576000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	255000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2761000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1036000	USD
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	24769	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	310000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1904000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	157891000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	16351000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	12710000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	25352000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	16661000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1597000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1630000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2952000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-3517000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	252000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-128000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	402000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	477000	USD
CY2019Q2	fstr	Corporate Expense And Other Unallocated Charges CorporateExpenseAndOtherUnallocatedCharges	3757000	USD
CY2018Q2	fstr	Corporate Expense And Other Unallocated Charges CorporateExpenseAndOtherUnallocatedCharges	4790000	USD
	fstr	Corporate Expense And Other Unallocated Charges CorporateExpenseAndOtherUnallocatedCharges	7225000	USD
	fstr	Corporate Expense And Other Unallocated Charges CorporateExpenseAndOtherUnallocatedCharges	8792000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11249000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6162000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	15577000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4829000	USD
CY2019Q2	us-gaap	Assets Assets	416810000	USD
CY2018Q4	us-gaap	Assets Assets	383249000	USD
CY2019Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	37457000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	26692000	USD
CY2019Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	2162000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1505000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	200933000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	172890000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	351402000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	295344000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	200933000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	172890000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	351402000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	295344000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	19764000	USD
	fstr	Contractwith Customer Liability Increasefrom Cash Receipts ContractwithCustomerLiabilityIncreasefromCashReceipts	2016000	USD
CY2019Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	318000	USD
CY2018Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	339000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	1266000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	740000	USD
CY2019Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	209324000	USD
CY2019Q2	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.112
CY2018Q4	us-gaap	Goodwill Goodwill	19258000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-39000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	19219000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	82821000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36384000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46437000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	82980000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	33144000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	49836000	USD
CY2019Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1679000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1775000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3391000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3560000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	3215000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5856000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5821000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5738000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	5242000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	20565000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46437000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46437000	USD
CY2019Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	46437000	USD
CY2019Q2	us-gaap	Inventory Raw Materials InventoryRawMaterials	20215000	USD
CY2019Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1357000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	932000	USD
CY2019Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4000	USD
CY2018Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-473000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	104000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-719000	USD
CY2019Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	71182000	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	69041000	USD
CY2019Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	37457000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	26692000	USD
CY2019Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	5594000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	6940000	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	21831000	USD
CY2019Q2	us-gaap	Inventory Net InventoryNet	134448000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	124504000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	191785000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	188655000	USD
CY2019Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	107344000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	101798000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	84441000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	86857000	USD
CY2019Q2	us-gaap	Depreciation Depreciation	2768000	USD
CY2018Q2	us-gaap	Depreciation Depreciation	2938000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	13235000	USD
	us-gaap	Depreciation Depreciation	5540000	USD
	us-gaap	Depreciation Depreciation	5882000	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	fstr	Lessee Lease Renewal Term LesseeLeaseRenewalTerm	P5Y
	fstr	Lessee Lease Termination Period LesseeLeaseTerminationPeriod	P1Y
CY2019Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y
CY2019Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.049
CY2019Q2	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y
CY2019Q2	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.043
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13235000	USD
CY2019Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3334000	USD
CY2019Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	9901000	USD
CY2019Q2	fstr	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	3626000	USD
CY2019Q2	fstr	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	2834000	USD
CY2019Q2	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	792000	USD
CY2019Q2	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	642000	USD
CY2019Q2	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	150000	USD
CY2019Q2	us-gaap	Finance Lease Liability FinanceLeaseLiability	792000	USD
CY2019Q2	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	179000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	357000	USD
CY2019Q2	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	12000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	21000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	914000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	1830000	USD
CY2019Q2	us-gaap	Sublease Income SubleaseIncome	9000	USD
	us-gaap	Sublease Income SubleaseIncome	18000	USD
CY2019Q2	us-gaap	Lease Cost LeaseCost	1096000	USD
	us-gaap	Lease Cost LeaseCost	2190000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	2156000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	378000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1480000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2147000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	357000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3412000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	407000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2518000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	88000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1909000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	12000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1521000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	4418000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15925000	USD
CY2019Q2	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	864000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2690000	USD
CY2019Q2	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	72000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	13235000	USD
CY2019Q2	us-gaap	Finance Lease Liability FinanceLeaseLiability	792000	USD
CY2019Q2	us-gaap	Capital Lease Obligations CapitalLeaseObligations	792000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	974000	USD
CY2019Q2	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	91115000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	74982000	USD
CY2018Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	0	USD
CY2019Q2	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	3142000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	629000	USD
CY2019Q2	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	87973000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	74353000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	16000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	16000	USD
CY2019Q2	us-gaap	Derivative Assets DerivativeAssets	0	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	675000	USD
CY2019Q2	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	16000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	691000	USD
CY2019Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	506000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2019Q2	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	506000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	9564000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5434000	USD
	us-gaap	Net Income Loss NetIncomeLoss	13254000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3576000	USD
CY2019Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	10420000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	10365000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	10399000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	10358000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10420000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10365000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10399000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10358000	shares
CY2019Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	222000	shares
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	119000	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	199000	shares
	us-gaap	Incremental Common Shares Attributable To Nonvested Shares With Forfeitable Dividends IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends	119000	shares
CY2019Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	222000	shares
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	119000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	199000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	119000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10642000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10484000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10598000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10477000	shares
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.92
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.90
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2019Q2	us-gaap	Share Based Compensation ShareBasedCompensation	1179000	USD
CY2018Q2	us-gaap	Share Based Compensation ShareBasedCompensation	822000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2034000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1904000	USD
CY2019Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	6293000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y9M18D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	18.61
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	18.63
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	19.50
	fstr	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Incentive Awards Expected To Vest Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForIncentiveAwardsExpectedToVestWeightedAverageGrantDateFairValue	9.90
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	18.61
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	2057000	USD
	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	349000	USD
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	728000	USD
CY2019Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	1678000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment Remainder Of Year LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentRemainderOfYear	6000000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment Year Two LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentYearTwo	8000000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment Year Three LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentYearThree	8000000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment Year Four LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentYearFour	8000000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment Year Five LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentYearFive	8000000	USD
	fstr	Litigation Settlement Amount Awarded To Other Party Scheduled Payment After Year Five LitigationSettlementAmountAwardedToOtherPartyScheduledPaymentAfterYearFive	8000000	USD
	us-gaap	Litigation Settlement Amount Awarded To Other Party LitigationSettlementAmountAwardedToOtherParty	46000000	USD
CY2019Q2	fstr	Present Value Of Proposed Remedial Work PresentValueOfProposedRemedialWork	1100000000	USD
CY2019Q2	fstr	Undiscovered Remedial Work UndiscoveredRemedialWork	1700000000	USD
CY2019Q2	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6078000	USD
CY2018Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6128000	USD
CY2018Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6128000	USD
	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	3000	USD
	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	53000	USD
CY2019Q2	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6078000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1685000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	728000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11249000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6162000	USD
CY2019Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.150
CY2018Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.118
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2323000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1253000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	15577000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4829000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.149
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.259

Files In Submission

Name	View Source	Status
0000352825-19-000037-index-headers.html	Edgar Link	pending
0000352825-19-000037-index.html	Edgar Link	pending
0000352825-19-000037.txt	Edgar Link	pending
0000352825-19-000037-xbrl.zip	Edgar Link	pending
ex-102q22019.htm	Edgar Link	pending
ex-311q22019.htm	Edgar Link	pending
ex-312q22019.htm	Edgar Link	pending
ex-320q22019.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
fstr-20190630.htm	Edgar Link	pending
fstr-20190630.xsd	Edgar Link	pending
fstr-20190630_cal.xml	Edgar Link	unprocessable
fstr-20190630_def.xml	Edgar Link	unprocessable
fstr-20190630_htm.xml	Edgar Link	completed
fstr-20190630_lab.xml	Edgar Link	unprocessable
fstr-20190630_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$FSTR
FOSTER L B CO Stock $fstr

2019 Q2 Form 10-Q Financial Statement

#000035282519000037 Filed on July 31, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FSTR FOSTER L B CO Stock $fstr

2019 Q2 Form 10-Q Financial Statement

#000035282519000037 Filed on July 31, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FSTR
FOSTER L B CO Stock $fstr