XML 57 R38.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment, Customer and Geographical Reporting (Details Textual) (Sales Revenue, Segment [Member])
 3 Months Ended 6 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting Information [Line Items]        
Concentration Risk, Percentage 69.00%us-gaap_ConcentrationRiskPercentage1 69.00%us-gaap_ConcentrationRiskPercentage1 70.00%us-gaap_ConcentrationRiskPercentage1 67.00%us-gaap_ConcentrationRiskPercentage1
Customer Two [Member] | US Government [Member]
        
Segment Reporting Information [Line Items]        
Concentration Risk, Percentage   10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis
= dysl_UsGovernmentMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_SalesRevenueSegmentMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dysl_CustomerTwoMember		   10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis
= dysl_UsGovernmentMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_SalesRevenueSegmentMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dysl_CustomerTwoMember
Four Customers [Member] | US Government [Member]
        
Segment Reporting Information [Line Items]        
Concentration Risk, Percentage 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis
= dysl_UsGovernmentMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_SalesRevenueSegmentMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dysl_FourCustomersMember		   10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis
= dysl_UsGovernmentMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_SalesRevenueSegmentMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dysl_FourCustomersMember