XML 21 R42.htm IDEA: XBRL DOCUMENT v2.4.1.9
STOCKHOLDERS' EQUITY (Details Textual) (USD $)
1 Months Ended 3 Months Ended 1 Months Ended
Jan. 29, 2014
Mar. 31, 2015
Mar. 31, 2015
Dec. 31, 2014
May 19, 2014
Stockholder's Equity [Line Items]          
Total Shares Authorized   85,000,000atos_TotalSharesAuthorized 85,000,000atos_TotalSharesAuthorized    
Common Stock, Shares Authorized   75,000,000us-gaap_CommonStockSharesAuthorized 75,000,000us-gaap_CommonStockSharesAuthorized 75,000,000us-gaap_CommonStockSharesAuthorized  
Common Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare  
Preferred Stock, Shares Authorized   10,000,000us-gaap_PreferredStockSharesAuthorized 10,000,000us-gaap_PreferredStockSharesAuthorized 10,000,000us-gaap_PreferredStockSharesAuthorized  
Preferred Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   6,033,426us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 6,033,426us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights    
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 15.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Percentage of Common Stock Outstanding         2.00%atos_PercentageOfCommonStockOutstanding
Entitled to Receive Worth of Common Stock         $ 30.00atos_EntitledToReceiveWorthOfCommonStock
Series A Preferred Stock [Member]          
Stockholder's Equity [Line Items]          
Preferred Stock, Shares Authorized   750,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
750,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
   
Preferred Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
   
2014 Public Offering [Member]          
Stockholder's Equity [Line Items]          
Shares, Issued 5,834,234us-gaap_SharesIssued
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
       
Shares Issued, Price Per Share $ 2.40us-gaap_SharesIssuedPricePerShare
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
       
Proceeds from Issuance or Sale of Equity $ 14,000,000us-gaap_ProceedsFromIssuanceOrSaleOfEquity
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
       
Stockholders Equity Note, Stock Split   Each unit consists of one share of common stock and a warrant to purchase 0.20 of a share of common stock (the “2014 Investor Warrants”).      
Warrants Callable Per Share $ 6.00atos_WarrantsCallablePerShare
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
       
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 3.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
$ 3us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
$ 3us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndFourteenPublicOfferingMember
   
Acuiety Warrants [Member]          
Stockholder's Equity [Line Items]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 5us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_AcuietyWarrantsMember
$ 5us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_AcuietyWarrantsMember
   
outside consulting firm [Member]          
Stockholder's Equity [Line Items]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 4.24us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_OutsideConsultingFirmMember
$ 4.24us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_OutsideConsultingFirmMember
   
Placement Agent1 [Member]          
Stockholder's Equity [Line Items]          
Cash Fee Equals to Percentage of Gross Proceeds from Sale of Common Stock and Warrants 7.00%atos_CashFeeEqualsToPercentageOfGrossProceedsFromSaleOfCommonStockAndWarrants
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
       
Fees and Commissions, Other 980,151us-gaap_PaymentsOfStockIssuanceCosts
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
       
Placement Agent1 [Member] | Warrant [Member]          
Stockholder's Equity [Line Items]          
Fees and Commissions, Other 980,151us-gaap_PaymentsOfStockIssuanceCosts
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
       
Exercise Price of Common Stock $ 3.00atos_ExercisePriceOfCommonStock
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
       
Option Indexed To Issuer's Equity, Indexed Shares 121,707us-gaap_OptionIndexedToIssuersEquityIndexedShares
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
       
Percentage of Shares Sold in Offering 3.00%atos_PercentageOfSharesSoldInOffering
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgent1Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
       
Placement Agent Warrants [Member]          
Stockholder's Equity [Line Items]          
Option Indexed To Issuer's Equity, Indexed Shares 175,027us-gaap_OptionIndexedToIssuersEquityIndexedShares
/ atos_SecuritiesPurchaseAgreementsAxis
= atos_PlacementAgentWarrantsMember
       
Minimum [Member] | 2011 Private Placement [Member]          
Stockholder's Equity [Line Items]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.25us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndElevenPrivatePlacementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
$ 1.25us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndElevenPrivatePlacementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Maximum [Member] | 2011 Private Placement [Member]          
Stockholder's Equity [Line Items]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 1.6us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndElevenPrivatePlacementMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
$ 1.6us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= atos_TwoThousandAndElevenPrivatePlacementMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Aspire Capital Fund, Llc [Member]          
Stockholder's Equity [Line Items]          
Stock Issued During Period, Shares, New Issues     2,653,199us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= atos_AspireCapitalFundLlcMember
   
Proceeds from Issuance of Common Stock     $ 4,292,349us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= atos_AspireCapitalFundLlcMember
   
Beneficial Owner [Member]          
Stockholder's Equity [Line Items]          
Equity Method Investment, Ownership Percentage         15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_BeneficialOwnerMember