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State of Texas Funding (Detail Textuals) (USD $)
In Millions, unless otherwise specified
 6 Months Ended 1 Months Ended
Dec. 31, 2014
Aug. 28, 2014
Mar. 31, 2010
State Of Texas Funding [Line Items]      
Payment of common stock repurchase right $ 2.3astc_PaymentOfCommonStockRepurchaseRight    
Texas emerging technology fund | 1st Detect      
State Of Texas Funding [Line Items]      
Funds awarded for development and marketing     1.8astc_FundsAwardedForDevelopmentAndMarketing
/ us-gaap_LeaseArrangementTypeAxis
= astc_TexasEmergingTechnologyFundMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= astc_FirstDetectMember
Note payable interest rate 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LeaseArrangementTypeAxis
= astc_TexasEmergingTechnologyFundMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= astc_FirstDetectMember		    
Payment of common stock repurchase right   $ 2.3astc_PaymentOfCommonStockRepurchaseRight
/ us-gaap_LeaseArrangementTypeAxis
= astc_TexasEmergingTechnologyFundMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= astc_FirstDetectMember