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Stock Options (Details Textual) (USD $)
3 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Sep. 30, 2014
Sep. 19, 2014
Consultants
Jun. 20, 2013
Consultants
Nov. 17, 2014
Dec. 04, 2013
Directors
Mar. 23, 2011
Directors
Oct. 28, 2013
Aug. 15, 2013
Directors
Consultants
Nov. 28, 2005
Stock Options (Textual)                      
Unrecognized compensation cost related to awards $ 1,039,871us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized                    
Share-based Compensation 316,959us-gaap_ShareBasedCompensation 156,374us-gaap_ShareBasedCompensation 1,087,356us-gaap_ShareBasedCompensation                
Expected term 5 years                    
Expected volatility, Minimum 96.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum                    
Expected volatility, Maximum 122.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum                    
Risk-free Interest rate, Minimum 0.62%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum                    
Risk-free Interest rate, Maximum 1.83%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum                    
Portwest Investments Ltd [Member]                      
Stock Options (Textual)                      
Number of consultants       2dwog_NumberOfConsultants
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
2dwog_NumberOfConsultants
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
           
Description of stock options vesting       600,000 vesting immediately and remaining vesting on September 19, 2015. 500,000 vesting immediately and remaining vesting on June 20, 2014            
Number of warrants, Granted         1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
           
Number of option, Granted at September 19, 2014       1,200,000dwog_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossThree
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
             
Option exercise price       $ 0.38us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
$ 0.05us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
           
Number of shares vested immediately       600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_PortwestInvestmentsLtdMember
           
Option vesting period       5 years 5 years            
Directors [Member]                      
Stock Options (Textual)                      
Number of directors       7dwog_NumberOfDirectors
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
6dwog_NumberOfDirectors
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
  1dwog_NumberOfDirectors
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
6dwog_NumberOfDirectors
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
     
Description of stock options vesting       200,000 vesting immediately and the remaining vesting one-third on September 19, 2015, and one-third on September 19, 2016, with a five-year life. 150,000 vesting immediately and the remaining vesting one-third on June 20, 2014, and one-third on June 20, 2015, with a five-year life. 200,000 vesting immediately and the remaining vesting one-third on November 17, 2015, and one-third on November 17, 2016, with a five-year life. 150,000 vesting immediately and the remaining vesting one-third on December 4, 2014, and one-third on December 4, 2015, with a five-year life. 150,000 vesting immediately and the remaining vesting one-third on March 23, 2012, and one-third on March 23, 2013, with a five-year life.      
Number of warrants, Granted         450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
     
Number of option, Granted at September 19, 2014       600,000dwog_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossThree
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
             
Option exercise price       $ 0.38us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
$ 0.05us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
$ 0.23us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
$ 0.34us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
$ 0.14us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
     
Number of shares vested immediately       200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
150,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
150,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
150,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
     
Option vesting period       5 years 5 years 5 years 5 years 5 years      
Employee [Member]                      
Stock Options (Textual)                      
Number Of Employee       1dwog_NumberOfEmployee
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
1dwog_NumberOfEmployee
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
           
Description of stock options vesting       60,000 vesting immediately and the remaining vesting one-third on September 19, 2015, and one-third on September 19, 2016, with a five-year life. 50,000 vesting immediately and the remaining vesting one-third on June 20, 2014, and one-third on June 20, 2015, with a five-year life.            
Number of warrants, Granted         150,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
           
Number of option, Granted at September 19, 2014       180,000dwog_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossThree
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
             
Option exercise price       $ 0.38us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
$ 0.05us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
           
Number of shares vested immediately       60,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_EmployeeMember
           
Option vesting period       5 years 5 years            
Contractor [Member]                      
Stock Options (Textual)                      
Number of warrants, Granted                 250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_ContractorMember
   
Option exercise price                 $ 0.30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dwog_ContractorMember
   
Option vesting period                 5 years    
Maximum                      
Stock Options (Textual)                      
Maximum percentage of number of shares which may be reserved for issuance                     10.00%dwog_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingAwardAsPercentageOfSharesIssued
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Stock options and stock units issued vesting percentage                     2.00%dwog_StockOptionsAndStockUnitsIssuedVestingPercentage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Stock Options [Member]                      
Stock Options (Textual)                      
Number of directors                   6dwog_NumberOfDirectors
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Number of consultants                   1dwog_NumberOfConsultants
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Number of warrants, Granted     3,450,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
               
Number of option, Granted at September 19, 2014     6,780,000dwog_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossThree
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
               
Stock options - Exercised August 12, 2013, shares                    3,200,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Stock options - Exercised August 12, 2013                   322,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Stock option outstanding unvested 5,620,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
  5,370,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
               
Aggregate intrinsic value of exercisable options     $ 0.11us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember