Quarterly report pursuant to Section 13 or 15(d)

Common Stock Transactions - Additional Information (Detail)

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Common Stock Transactions - Additional Information (Detail)
$ / shares in Units, $ in Millions
 1 Months Ended 6 Months Ended 12 Months Ended
May. 11, 2015
shares
Dec. 01, 2014
USD ($)
$ / shares
shares
Apr. 21, 2014
shares
Sep. 09, 2005
$ / shares
shares
Dec. 31, 2014
shares
Jun. 30, 2015
shares
Dec. 31, 2014
shares
Schedule of Capitalization, Equity [Line Items]              
Common stock, shares outstanding         129,714,000 129,714,000 129,714,000
Common stock, shares issued   8,000,000          
Offering price of common stock | $ / shares   $ 1.25          
Proceeds from sale of common stock, net | $   $ 8.6          
Convertible stock, Conversion of convertible securities   36,300,171     36,300,171    
Preferred stock, shares outstanding         0   0
Common stock, authorized         200,000,000 200,000,000 200,000,000
Restricted Stock              
Schedule of Capitalization, Equity [Line Items]              
Number of shares authorized for grant     300,000        
Stock options vesting period     3 years        
Common Stock              
Schedule of Capitalization, Equity [Line Items]              
Common stock, shares outstanding           140,000,000  
Common stock, shares issued             8,000,000
Before Amendment              
Schedule of Capitalization, Equity [Line Items]              
Common stock, authorized 150,000,000            
After Amendment              
Schedule of Capitalization, Equity [Line Items]              
Common stock, authorized 200,000,000            
RVL One Limited Liability Company              
Schedule of Capitalization, Equity [Line Items]              
Common stock, shares outstanding           83,000,000  
Common stock share outstanding owned           59.00%  
Maximum              
Schedule of Capitalization, Equity [Line Items]              
Reverse stock split 0.25            
Minimum              
Schedule of Capitalization, Equity [Line Items]              
Reverse stock split 0.1429            
Kingstone Warrants              
Schedule of Capitalization, Equity [Line Items]              
Warrants expiration period       10 years      
Warrants issued       289,187      
Warrants exercise price | $ / shares       $ 4.30