Annual report pursuant to section 13 and 15(d)

Note 8 - Stockholders' Equity (Detail)

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Note 8 - Stockholders' Equity (Detail) (USD $)
 1 Months Ended 2 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 24 Months Ended 12 Months Ended
Jul. 31, 2012
Feb. 29, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Feb. 10, 2012
Dec. 31, 2009
Jul. 31, 2012
Issued to Sub-Placement Agents [Member]
May 31, 2012
Issued to Two Non-Employee Directors [Member]
Dec. 31, 2012
Issued to Third Parties [Member]
Jul. 31, 2012
Investment from Non-employee Directors [Member]
Feb. 29, 2012
Series A Convertible Preferred Stock [Member]
Dec. 31, 2006
Series A Convertible Preferred Stock [Member]
Dec. 15, 2011
Series A Convertible Preferred Stock [Member]
Dec. 31, 2011
The 2012 Plan [Member]
Dec. 31, 2012
Selling, General and Administrative Expenses [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) 1.10   0.95 0.43 3.74   0.42   1.00 1.00            
Stock Issued During Period, Shares, New Issues (in Shares) 5,454,523                              
Warrants Issued During Period 2,727,274   7,652,071 2,122,500 25,444     409,093 1,250,000 421,666            
Gross Proceeds from Issuance of Private Placement (in Dollars) $ 6,000,000                              
Term of Warrants 5 years               5 years              
Warrants Issued During Period, Weighted Average Exercise Price (in Dollars per share) $ 1.45   $ 1.05 $ 0.29 $ 8.00     $ 1.10                
Proceeds from Issuance of Private Placement (in Dollars) 5,516,495   5,516,495               269,980          
Payments of Stock Issuance Costs (in Dollars) 480,000                              
Maximum Liquidated Damages as Percentage of Investor's Investment in PIPE Financing 6.00%                              
Maximum Liquidated Damages Amount of Investor's Investment in PIPE Financing (in Dollars) 360,000                              
Preferred Stock Issued During Period, Shares, New Issues                         7,965,000      
Convertible Preferred Stock, Number of Preferred Shares Converted into One Common Shares                         4 1    
Stock Issued During Period, Shares, Conversion of Convertible Securities                       7,965,000        
Preferred Stock, Shares Authorized       8,000,000   25,000,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     52,600                       3,815,675  
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period                             3,246,450  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized     3,000,000                          
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures (in Dollars)     2,947,400                          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)     $ 0.48   $ 0.83                      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)     1,948,000                          
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition     1 year 292 days                          
Warrants Issued During Period, Value (in Dollars)   383,204             514,250 349,003            
Allocated Share-based Compensation Expense (in Dollars)                               $ 863,253