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Note 15 - Concentration of Risk (Details) (Customer Concentration Risk [Member])
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Accounts Receivable [Member]    
Note 15 - Concentration of Risk (Details) [Line Items]    
Concentration Risk Threshold Percentage 10.00%apt_ConcentrationRiskThresholdPercentage
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 10.00%apt_ConcentrationRiskThresholdPercentage
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
Sales Revenue, Goods, Net [Member]    
Note 15 - Concentration of Risk (Details) [Line Items]    
Concentration Risk Threshold Percentage 10.00%apt_ConcentrationRiskThresholdPercentage
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 10.00%apt_ConcentrationRiskThresholdPercentage
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember