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Earnings Per Share - (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share [Abstract]    
Stock Options Antidilutive securities excluded from computation 299rtec_StockOptionsAntidilutivesecuritiesexcludedfromcomputation  
Restricted Stock Unit Antidilutive excluded from computation 0rtec_RestrictedStockUnitAntidilutiveexcludedfromcomputation  
Restricted stock units excluded from Computation of diluted loss per share   1,377rtec_RestrictedstockunitsexcludedfromComputationofdilutedloss
Net Income (Loss) Attributable to Parent $ 1,848us-gaap_NetIncomeLoss $ (724)us-gaap_NetIncomeLoss
Weighted Average Number of Shares Outstanding, Basic 31,928us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 33,092us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted Average Number Diluted Shares Outstanding Adjustment 621us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment 0us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Weighted Average Number of Shares Outstanding, Diluted 32,549us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 33,092us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings (Loss) Per Share, Basic $ 0.06us-gaap_EarningsPerShareBasic $ (0.02)us-gaap_EarningsPerShareBasic
Earnings (Loss) Per Share, Diluted $ 0.06us-gaap_EarningsPerShareDiluted $ (0.02)us-gaap_EarningsPerShareDiluted
Stock Options Excluded from Computation of diluted loss per share   739rtec_StockOptionsExcludedfromComputationofdilutedloss