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Common Stock (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 9 Months Ended 12 Months Ended
Aug. 02, 2016
Jun. 07, 2016
Jun. 03, 2016
Apr. 08, 2016
Apr. 04, 2016
Feb. 04, 2016
Feb. 03, 2016
Jan. 08, 2016
Dec. 18, 2015
Nov. 17, 2015
Mar. 06, 2015
Oct. 31, 2011
Feb. 28, 2014
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Mar. 07, 2016
Common stock, shares outstanding                           12,488,022   4,522,186  
Common stock, shares authorized                           100,000,000   100,000,000  
Proceeds from direct offering         $ 1,250 $ 800     $ 6,100   $ 6,100   $ 9,300        
Purchase of common stock                           $ 12,511 $ 5,654    
Number of common stock issuance during the period                           $ 11,988      
Anatolia Energy Limited [Member]                                  
Common stock issued for acquisition related fees, shares 50,665             117,097           47,229      
Shares issued price per share $ 1.42             $ 6.00           $ 1.60      
Common stock issued for acquisition related fees $ 100             $ 700           $ 100      
Common Stock Purchase Agreement [Member]                                  
Sale of common stock, shares                           3,220,000      
Proceeds from sales of common stock                           $ 4,700      
Common Stock Purchase Agreement One [Member]                                  
Sale of common stock, shares                           795,350      
Proceeds from sales of common stock                           $ 1,000      
Common Stock Purchase Agreement [Member] | November 10, 2016 [Member]                                  
Proceeds from future sale of equity                           6,300      
Available for future sales                           $ 12,000      
Number of common stock shares available for future sales                           744,650      
Option Agreement [Member] | Aspire Capital [Member]                                  
Number of common stock shares issued during the period             75,000                    
Agreement term             24 months                    
Purchase of common stock             $ 10,000                    
Number of common stock issuance during the period             $ 300                    
ATM Sales Agreement [Member]                                  
Available for future sales                                
ATM Sales Agreement [Member] | BTIG, LLC [Member]                                  
Sale of common stock, shares                           3,298,396      
Proceeds from direct offering                   $ 6,000   $ 15,000          
Proceeds from sales of common stock                           $ 5,800      
Percentage of commission to be paid on gross proceeds                       3.00%          
Loan Agreement [Member] | Resource Capital Fund V LP [Member]                                  
Issuance of common stock for payment of accrued interest and fees, shares                           38,086      
Issuance of common stock for payment of accrued interest and fees                               $ 200  
URI and Aspire Capital [Member]                                  
Sale of common stock, shares         375,000                        
Proceeds from direct offering         $ 1,200                        
Sale of stock price per share         $ 2.17                        
Pre-funded common stock purchase warrants         200,000                        
Pre-funded warrants price per share         $ 2.16                        
Pre-funded warrants amount         $ 400                        
Warrants exercise price per share         $ 0.01                        
Warrants term         3 years                        
URI and Aspire Capital [Member] | Stock Purchase Agreements [Member]                                  
Sale of common stock, shares             296,666                    
Proceeds from direct offering             $ 800                    
Aspire Capital [Member]                                  
Number of common stock shares issued during the period     200,000                            
Aspire Capital [Member] | Common Stock Purchase Agreement [Member]                                  
Number of common stock shares issued during the period       240,000                          
Agreement term       30 months                          
Purchase of common stock       $ 12,000                          
Maximum number of shares approved to issue   5,000,000                              
Maximum [Member]                                  
Common stock, shares outstanding                                 61,800,000
Common stock, shares authorized                                 200,000,000
Minimum [Member]                                  
Common stock, shares outstanding                                 5,200,000
Common stock, shares authorized                                 100,000,000