Annual report pursuant to Section 13 and 15(d)

BASIS OF PRESENTATION AND LIQUIDITY (Details Textual)

v3.2.0.727
BASIS OF PRESENTATION AND LIQUIDITY (Details Textual) - Range [Domain] - USD ($)
1 Months Ended 12 Months Ended
Apr. 18, 2015
Nov. 20, 2014
Sep. 30, 2014
Apr. 30, 2015
Apr. 30, 2014
Jun. 30, 2015
Jun. 03, 2015
Apr. 30, 2013
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Assets, Current, Total       $ 14,005,704 $ 16,608,595      
Liabilities, Current, Total       15,252,018 15,997,839      
Working Capital Deficiency       $ 1,246,000   $ 611,000    
Percentage Of International Operation       60.00%        
Conversion of Notes       $ 0 $ (3,114,816)      
Common Stock, Shares Authorized       100,000,000 100,000,000      
Convertible Notes Payable, Current       $ 1,703,000 $ 0 1,703,000    
Preferred Stock Conversions, Inducements       5,492,842 0      
Gains Losses On Settlement Of Debt       1,401,516 0      
Cash received on section 16 settlement       $ 650,000 $ 0      
Stockholders' Equity, Reverse Stock Split one-for-twenty two              
Common Stock, Shares, Issued 19,508,727     982,660 632,417      
Common Stock Shares Issued Decrease 886,760              
Common Stock Shares Outstanding Increase 888,132              
Stock Issued During Period, Shares, Stock Splits 1,372              
Preferred Stock, Shares Issued       2,088        
Disposal Group, Including Discontinued Operation, Liabilities, Current       $ 5,710,807 $ 7,513,356 5,711,000    
Accounts Payable and Accrued Liabilities, Current, Total       5,409,361 3,826,049 5,409,000    
Dividends Payable, Current       677,546 72,034 678,000    
Cash and Cash Equivalents, at Carrying Value, Total       2,364,360 2,177,070 2,364,000   $ 1,410,223
Common Stock, Value, Issued       98 $ 63      
Suisun Operation [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Long-term Line of Credit       $ 1,000,000        
Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Conversion of Notes   $ 313,568            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   1,011,397            
September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Conversion of Notes     $ 145,362          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     488,603          
Preferred Stock Conversions, Inducements     $ 1,871,000          
November Exchange Agreements [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Preferred Stock Conversions, Inducements   $ 3,622,000            
Series F Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Conversion of Notes     $ 5,268          
Preferred Stock, Shares Issued       5,268 0      
Series F Preferred Stock [Member] | September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Sale of Stock, Price Per Share     $ 0.001          
Series E Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Preferred Stock, Shares Issued       0 2,438      
Series E Preferred Stock [Member] | Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Convertible Preferred Stock, Shares Issued upon Conversion   1,644            
Convertible Notes Payable, Current   $ 1,644,000            
Series E Preferred Stock [Member] | September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Convertible Preferred Stock, Shares Issued upon Conversion     794          
Convertible Notes Payable, Current     $ 794,000          
Series G Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Preferred Stock, Shares Issued       2,088 0      
Series G Preferred Stock [Member] | September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Sale of Stock, Price Per Share     $ 0.001          
Conversion of Notes     $ 1,060          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     1,028          
Series F1 Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Preferred Stock Conversions, Inducements       $ 241,000        
Preferred Stock, Shares Issued       190        
Series F1 Preferred Stock [Member] | Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Shares Issued, Price Per Share   $ 0.001            
Debt Conversion, Converted Instrument, Shares Issued   11,175            
Preferred Stock, Conversion Basis   Under the terms of the Series F-1 Certificate of Designation, each share of Series F-1 Preferred Stock has a stated value of $1,000 and is convertible into shares of Common Stock equal to the stated value (and all accrued but unpaid dividends) divided by the conversion price of $1.00 per share (subject to adjustment in the event of stock splits and dividends).            
Preferred Stock, Dividend Rate, Percentage   8.00%            
Preferred Stock Beneficial Conversion Percentage   9.99%            
Series G1 Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Preferred Stock, Shares Issued       805        
Series G1 Preferred Stock [Member] | Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Shares Issued, Price Per Share   $ 0.001            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   1,248            
Debt Conversion, Converted Instrument, Shares Issued   2,194            
Preferred Stock, Conversion Basis   Under the terms of the Series G-1 Certificate of Designation, each share of Series G-1 Preferred Stock has a stated value of $1,000 and is convertible into shares of Common Stock equal to the stated value (and all accrued but unpaid dividends) divided by the conversion price of $0.815 per share (subject to adjustment in the event of stock splits and dividends).            
Preferred Stock, Dividend Rate, Percentage   8.00%            
Preferred Stock Beneficial Conversion Percentage   9.99%            
Series H-1 Preferred [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Purchase Price       $ 1,575,000        
2012 Warrant [Member] | Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   1,161,567            
2012 Warrant [Member] | September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     710,248          
Amendment Warrant [Member] | September Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     61,760          
2013 Warrant [Member] | Exchange Agreement [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   1,161,567            
Hudson Bay [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Gains Losses On Settlement Of Debt       1,402,000        
Cash received on section 16 settlement       650,000        
Forgiveness of Notes       735,000        
Make Whole Forgiveness on Convertible Preferred Notes       17,000        
Dividend Payable [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Common Stock, Value, Issued       500,000        
Short Term Promissory Notes [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Short-term Debt       2,438,000        
Debt Instrument, Settlement on Debt       735,000        
Debt Instrument, Remaining Debt       1,703,000        
Debt Instrument, Settlement on Debt One       1,299,000        
Debt Instrument, Paid In Cash       4,000        
Short Term Promissory Notes [Member] | Series H Preferred Stock [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Debt Instrument, Convertible, Preferred Stock       $ 400,000        
Subsequent Event [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Long-term Line of Credit           $ 1,000,000    
Subsequent Event [Member] | China Operations [Member] | Halcyon Coast Investment [Member]                
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                
Equity Method Investment, Ownership Percentage             60.00%  
Discontinued Operation Sale Price             $ 1,500,000  
Purchase Agreement Deposit Amount             $ 150,000