Joint Ventures (Narrative) (Details) (USD $)	9 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended			9 Months Ended		12 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Aug. 30, 2013 Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2013 Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2014 Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2013 Dakota Petroleum Transport Solutions, LLC [Member]	Nov. 09, 2009 Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2014 Dakota Plains Services, LLC [Member]	Sep. 30, 2014 Dakota Petroleum Transport Solutions Marketing, LLC [Member]	Dec. 31, 2013 Dakota Petroleum Transport Solutions Marketing, LLC [Member]	Sep. 30, 2014 Dakota Petroleum Transport Solutions Sand, LLC [Member]	Sep. 30, 2013 Supplemental Agreement [Member] Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2014 Supplemental Agreement [Member] Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2013 Supplemental Agreement [Member] Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2013 Transloader [Member] Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2013 Transloader [Member] Dakota Petroleum Transport Solutions, LLC [Member]	Sep. 30, 2014 Transloader [Member] Petroleum Transport Solutions, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage							50.00%	50.00%	50.00%		50.00%
Limited partners' contributed capital							$ 50,000	$ 650,000	$ 100		$ 1,000
Each limited partners' units issued for initial capital contribution							1,000	1,000	1,000		1,000
Limited partners' capital account, units outstanding					2,000			2,000	2,000		2,000
Agreement renewal period					2 years			2 years	2 years		1 year
Member preferred contribution									10
Member preferred contributions cash return per annum percent									5.00%
Preferred dividend receivable									626,027	252,057
Site improvements					1,299,201
PPE, Gross	59,852,619	55,479,993															658,012
Estimated residual value																	131,602
PPE, net	54,812,526	53,669,734															526,410
Cost of property less salvage value					526,410
Cash distribution percentage													75.00%
Cash distribution			10,000,000
Additional expenditures interest rate													7.00%
Additional expenditures incurred from agreement, discount													21,546
Additional expenditures incurred from agreement													772,791
Proceeds from cumulative preferred return	1,100,000
Rental income				$ 253,653		$ 72,243						$ 2,542		$ 8,156	$ 1,972	$ 9,719