Subsequent Events (Details Textual) (USD $)
 1 Months Ended 6 Months Ended 12 Months Ended 1 Months Ended 6 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended
Feb. 04, 2013
Jan. 31, 2013
Jun. 30, 2013
Dec. 31, 2012
Dec. 31, 2012
Common Stock [Member]
Jun. 30, 2013
Series D Convertible Preferred Stock [Member]
Dec. 31, 2012
Series D Convertible Preferred Stock [Member]
Feb. 28, 2013
Subsequent Event [Member]
Jun. 30, 2013
Subsequent Event [Member]
Dec. 31, 2012
Subsequent Event [Member]
Mar. 26, 2013
Subsequent Event [Member]
Mar. 31, 2013
Subsequent Event [Member]
Purchase Agreement [Member]
Mar. 31, 2013
Subsequent Event [Member]
Consulting Agreement [Member]
Mar. 31, 2013
Subsequent Event [Member]
Vesting Of Stock Awards [Member]
Aug. 06, 2013
Subsequent Event [Member]
Director [Member]
Aug. 09, 2013
Subsequent Event [Member]
Private Placement [Member]
Mar. 31, 2013
Subsequent Event [Member]
Private Placement [Member]
Jun. 30, 2013
Subsequent Event [Member]
December 31, 2013 [Member]
Jun. 30, 2013
Subsequent Event [Member]
December 31, 2015 [Member]
Jul. 31, 2013
Marine MP LLC [Member]
Subsequent Event [Member]
Preferred Stock, Shares Issued           1,500,000 0                          
Number Of Shares Sold Under Subscription Agreement 1,500,000             1,500,000                        
Stock Issued During Period, Value, Restricted Stock Award, Gross     $ 17,065,500           $ 1,550,000                      
Restricted stock agreement grant vesting percentage                                   17.00% 83.00%  
Other Inventory, Purchased Goods, Gross                 4,664,421                      
Stock Issued During Period, Shares, Restricted Stock Award, Gross                                       780,000
Stock Issued During Period, Shares, New Issues                       142,282 741,017 43,137   238,096 705,882      
Sale of Stock, Price Per Share                               $ 10.50        
Amount Involved In Corporate Officer Changes                             120,000          
Proceeds from Issuance of Common Stock                               2,500,000        
Proceeds From Shares Sold Under Subscription Agreement               12,000,000                        
Conversion of Stock, Shares Converted                   1,176,125                    
Conversion of Stock, Shares Issued         2,352,250                              
Preferred Stock, Shares Outstanding           145,000 0     323,875                    
Stock Issued During Period, Value, New Issues       1,107,718               853,692 6,297,694 294,167            
Common Stock Sale Price                     $ 8.50                  
Proceeds from Issuance of Private Placement                                 6,000,000      
Payments of Financing Costs, Total                                 115,000      
Stock Repurchased During Period, Shares   18,824 18,825 31,096                                
Stock Repurchased During Period, Value   $ 210,000 $ 260,000 $ 460,978