Annual report pursuant to Section 13 and 15(d)

15. Income Taxes (Tables)

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15. Income Taxes (Tables)
 12 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]  
Deferred tax assets
    March 31,  
    2018     2017  
Deferred tax assets:                
Net operating loss carryforwards   $ 25,487,000     $ 33,394,000  
Research and development tax credit carryforwards     1,789,000       1,746,000  
Stock-based compensation     3,697,000       5,439,000  
Allowances and accruals     1,118,000       1,232,000  
Other deferred tax assets     284,000       240,000  
State income taxes     1,000       4,000  
Basis difference in assets     (3,000 )     1,000  
Total deferred tax assets   $ 32,373,000     $ 42,056,000  
                 
Deferred tax assets     32,373,000       42,056,000  
Valuation allowance     (32,373,000 )     (42,056,000 )
Deferred tax assets   $ –     $ –  
Schedule of income tax expense
    Year Ended March 31,  
    2018     2017  
Current:            
State   $ 37,000     $ 6,000  
Foreign     13,000       –  
      50,000       6,000  
Deferred:                
Federal     –       (3,272,000 )
State     –       (158,000 )
Foreign     –       (844,000 )
    $ 50,000     $ (4,268,000 )
Reconciliation of federal income tax rate to effective rate
    Year Ended March 31,  
    2018     2017  
Expected federal statutory rate     30.8%       34.0%  
State income taxes, net of federal benefit     0.5%       1.2%  
Research and development credit     0.3%       0.3%  
Foreign earnings taxed at different rates     (0.3% )     (1.0% )
Effect of state net operating loss expiration     (0.9% )     (2.3% )
Effect of permanent differences     (4.2% )     0.0%  
True-up of state deferred assets     7.7%       (7.4% )
Tax cuts and Jobs Act impact     (103.7% )     (0.0% )
      (69.8% )     24.8%  
Change in valuation allowance     68.5%       8.2%  
Totals     (1.3% )     33.0%