Joint Ventures (Summarized Financial Statements) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Dakota Petroleum Transport Solutions Marketing, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Sales	$ 15,273,607	$ 9,115,703	$ 41,637,411	$ 44,234,110
Net Earnings	578,463	(2,201,127)	(2,587,964)	3,144,653
Company's Share of Equity in Net Earnings (Losses)	289,232	(1,100,564)	(1,293,982)	1,572,326
Total Assets	31,054,796		31,054,796		33,523,175
Total Liabilities	11,473,028		11,473,028		10,605,497
Share of Equity in Net Assets	9,790,884		9,790,884		11,458,836
Dakota Plains Services, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Sales	4,780,797	3,805,769	14,569,046	10,902,636
Net Earnings	329,475	28,630	1,178,835	617,639
Company's Share of Equity in Net Earnings (Losses)	164,738	14,315	589,418	212,744
Total Assets	8,758,351		8,758,351		9,945,720
Total Liabilities	6,760,292		6,760,292		9,126,495
Share of Equity in Net Assets	$ 659,817		$ 659,817		$ 70,399