Post-effective amendment to a registration statement that is not immediately effective upon filing

3. Summary of Significant Accounting Policies (Details Narrative)

v3.2.0.727
3. Summary of Significant Accounting Policies (Details Narrative) - USD ($)
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Long-term investment $ 4,538,000 $ 10,150,000  
Allowance for doubtful accounts 20,000 8,000 $ 22,000
Allowance for sales discounts, rebates, distributor fees and returns 183,000    
Inventory reserves 87,000 47,000  
Research and development expenses 1,533,000 2,887,000  
Advertising costs 231,000 155,000  
Shipping and handling costs 114,000 58,000  
Foreign currency transaction gain (loss) (24,000) 6,000  
Foreign currency translation adjustment (438,000) (78,000)  
Accumulated other comprehensive loss (3,507,000) (3,069,000)  
Ruthigen      
Long-term investment $ 4,538,000 $ 10,150,000  
Long-term investment, shares held 1,650,000 2,000,000  
Accounts Receivable [Member] | One Customer      
Significant customer concentration 56.00% 44.00%  
Accounts Receivable [Member] | Customer Two      
Significant customer concentration 14.00% 15.00%  
Accounts Receivable [Member] | Third Customer      
Significant customer concentration   12.00%  
Revenues [Member] | One Customer      
Significant customer concentration 47.00% 38.00%  
Revenues [Member] | Customer Two      
Significant customer concentration   23.00%