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NOTE, WARRANT, & COMMON STOCK PURCHASE AGREEMENT (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Note, Warrant And Common Stock Purchase Agreement [Line Items]    
Common Stock, Shares, Issued 5,361,000us-gaap_CommonStockSharesIssued 4,609,000us-gaap_CommonStockSharesIssued
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 2.20us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1  
Mevion Medical Systems Inc [Member]    
Note, Warrant And Common Stock Purchase Agreement [Line Items]    
Cash Payments $ 1,000,000ams_CashPayments
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= ams_MevionMedicalSystemsIncMember
 
Private Placement [Member]    
Note, Warrant And Common Stock Purchase Agreement [Line Items]    
Sale of Stock, Number of Shares Issued in Transaction 100,000us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Proceeds from Issuance of Private Placement 220,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Common Stock, Value, Subscriptions 1,220,000us-gaap_CommonStockSharesSubscriptions
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Stock Issued During Period, Shares, New Issues 650,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Stock Issued During Period, Value, New Issues 1,600,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Note and Warrant Purchase Agreement [Member]    
Note, Warrant And Common Stock Purchase Agreement [Line Items]    
Debt Instrument, Face Amount $ 1,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_SubsidiarySaleOfStockAxis
= ams_NoteAndWarrantPurchaseAgreementMember
 
Common Stock, Shares, Issued 200,000us-gaap_CommonStockSharesIssued
/ us-gaap_SubsidiarySaleOfStockAxis
= ams_NoteAndWarrantPurchaseAgreementMember
 
Debt Instrument, Interest Rate, Stated Percentage 15.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_SubsidiarySaleOfStockAxis
= ams_NoteAndWarrantPurchaseAgreementMember
 
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 2.20us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_SubsidiarySaleOfStockAxis
= ams_NoteAndWarrantPurchaseAgreementMember
 
Debt Instrument, Maturity Date Oct. 22, 2017