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Equity Plans and Share-Based Compensation (Share-based compensation cost by award type) (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation cost $ 261,141us-gaap_AllocatedShareBasedCompensationExpense $ 222,814us-gaap_AllocatedShareBasedCompensationExpense
Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation cost 165,500us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 132,292us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Restricted Stock Units and Awards [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation cost $ 95,641us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= asti_RestrictedStockUnitsAndAwardsMember		 $ 90,522us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= asti_RestrictedStockUnitsAndAwardsMember