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Equity Plans and Share-Based Compensation (Share-based compensation cost by line item) (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation cost $ 261,141us-gaap_AllocatedShareBasedCompensationExpense $ 222,814us-gaap_AllocatedShareBasedCompensationExpense
Research and development [Member]    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation cost 101,310us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember		 103,495us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember
Selling, general, administrative [Member]    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Share-based compensation cost $ 159,831us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= asti_SellingGeneralAdministrativeMember		 $ 119,319us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= asti_SellingGeneralAdministrativeMember