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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Sep. 30, 2014
Costs and estimated earnings on long-term contracts, progress billings $ 25,017us-gaap_ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms $ 30,041us-gaap_ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms
Property, plant and equipment, net of accumulated depreciation 70,738us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment 70,694us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Intangible assets, net of accumulated amortization 39,274us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization 37,402us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Advance payments on long-term contracts, costs incurred $ 33,026us-gaap_AmountOfDeferredCostsRelatedToLongTermContracts $ 44,110us-gaap_AmountOfDeferredCostsRelatedToLongTermContracts
Preferred stock, par value $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 10,000,000us-gaap_PreferredStockSharesAuthorized 10,000,000us-gaap_PreferredStockSharesAuthorized
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 50,000,000us-gaap_CommonStockSharesAuthorized 50,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 30,287,467us-gaap_CommonStockSharesIssued 30,247,512us-gaap_CommonStockSharesIssued
Treasury stock, shares 4,172,642us-gaap_TreasuryStockShares 4,040,532us-gaap_TreasuryStockShares