Annual report pursuant to Section 13 and 15(d)

NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details)

v2.4.1.9
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
12 Months Ended 72 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Nov. 10, 2014
Apr. 30, 2009
Aug. 31, 2014
Feb. 09, 2009
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Inventory Write-down $ 509,000us-gaap_InventoryWriteDown $ 186,000us-gaap_InventoryWriteDown          
Standard Product Warranty Description The Company typically offers a one to two year warranty for many of its products.            
Impairment of Intangible Assets, Finite-lived 0us-gaap_ImpairmentOfIntangibleAssetsFinitelived            
Finite-Lived Intangible Asset, Useful Life 15 years            
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares) 602,740us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 611,700us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount          
Postemployment Benefit, Severance Benefits 4,961,918artx_PostEmploymentBenefitSeveranceBenefits 4,968,811artx_PostEmploymentBenefitSeveranceBenefits 4,961,918artx_PostEmploymentBenefitSeveranceBenefits        
Supplemental Unemployment Benefits, Severance Benefits 1,441,390us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits 1,317,231us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits 1,441,390us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits        
Severance Costs 778,684us-gaap_SeveranceCosts1 410,167us-gaap_SeveranceCosts1          
Advertising Expense 111,000us-gaap_AdvertisingExpense 71,000us-gaap_AdvertisingExpense          
Stock Repurchase Program, Authorized Amount           2,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1 1,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1
Stock Repurchased During Period, Shares (in Shares)     738,611us-gaap_StockRepurchasedDuringPeriodShares        
Stock Repurchased During Period, Value     1,098,967us-gaap_StockRepurchasedDuringPeriodValue        
Stock Repurchased During Period, Net of Commissions, Value     1,084,060artx_StockRepurchasedDuringPeriodNetOfCommissionsValue        
Chief Executive Officer and Chief Operating Officer [Member] | Special Severance Pay with Certain Employment Agreements [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares)       273,973us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_OtherCommitmentsAxis
= artx_SpecialSeverancePayWithCertainEmploymentAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= artx_ChiefExecutiveOfficerAndChiefOperatingOfficerMember
     
Stock Issued During Period, Value, Restricted Stock Award, Gross       200,000us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross
/ us-gaap_OtherCommitmentsAxis
= artx_SpecialSeverancePayWithCertainEmploymentAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= artx_ChiefExecutiveOfficerAndChiefOperatingOfficerMember
     
Chief Executive Officer and Chief Operating Officer [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Stock Issued During Period, Value, Share-based Compensation, Gross         440,000us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= artx_ChiefExecutiveOfficerAndChiefOperatingOfficerMember
   
Stock Issued During Period, Shares, Share-based Compensation, Gross (in Shares)         602,740us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= artx_ChiefExecutiveOfficerAndChiefOperatingOfficerMember
   
Restricted Stock [Member] | Minimum [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Forfeiture Rate 5.00%artx_ForfeitureRate
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
           
Restricted Stock [Member] | Maximum [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Forfeiture Rate 10.00%artx_ForfeitureRate
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
           
Special Severance Pay with Certain Employment Agreements [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Postemployment Benefit, Severance Benefits 124,159artx_PostEmploymentBenefitSeveranceBenefits
/ us-gaap_OtherCommitmentsAxis
= artx_SpecialSeverancePayWithCertainEmploymentAgreementsMember
49,387artx_PostEmploymentBenefitSeveranceBenefits
/ us-gaap_OtherCommitmentsAxis
= artx_SpecialSeverancePayWithCertainEmploymentAgreementsMember
124,159artx_PostEmploymentBenefitSeveranceBenefits
/ us-gaap_OtherCommitmentsAxis
= artx_SpecialSeverancePayWithCertainEmploymentAgreementsMember
       
Training and Simulation Division [Member] | Computer Software, Intangible Asset [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Finite-Lived Intangible Asset, Useful Life 2 years            
Training and Simulation Division [Member]              
NOTE 2: - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]              
Capitalized Computer Software, Net $ 378,000us-gaap_CapitalizedComputerSoftwareNet
/ us-gaap_StatementBusinessSegmentsAxis
= artx_TrainingAndSimulationDivisionMember
$ 4,000us-gaap_CapitalizedComputerSoftwareNet
/ us-gaap_StatementBusinessSegmentsAxis
= artx_TrainingAndSimulationDivisionMember
$ 378,000us-gaap_CapitalizedComputerSoftwareNet
/ us-gaap_StatementBusinessSegmentsAxis
= artx_TrainingAndSimulationDivisionMember