Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v3.7.0.1
Income Taxes (Details) - USD ($)
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Current tax expense:    
Provision for current income taxes related to state and foreign taxes $ 19,000  
Reconciliation of income tax (benefit) expense to the federal statutory rate    
Federal income tax at the statutory rate (8,127,000) $ (8,558,000)
State taxes, net of federal effect (225,000) (250,000)
Foreign taxes 31,000 109,000
R&D tax credit (298,000) (451,000)
Impact of state rate change (270,000) 478,000
Warrant liability (474,000)  
Valuation allowance 5,918,000 5,596,000
Shortfall in tax benefit - stock compensation 3,352,000 3,058,000
Other 112,000 38,000
Income tax expense (benefit) 19,000 20,000
Deferred tax assets:    
Inventories 2,921,000 2,903,000
Warranty reserve 1,383,000 616,000
Bad debt reserve 2,514,000 3,350,000
Deferred revenue 1,254,000 1,101,000
Net operating loss (NOL) carry forwards 244,874,000 226,007,000
Tax credit carry forwards 19,784,000 19,411,000
Depreciation, amortization and impairment loss 2,505,000 3,045,000
Other 2,517,000 4,212,000
Deferred tax assets 277,752,000 260,645,000
Valuation allowance for deferred tax assets (269,299,000) (252,349,000)
Deferred tax assets, net of valuation allowance 8,453,000 8,296,000
Deferred tax liabilities:    
Federal benefit of state taxes (8,453,000) (8,296,000)
Net deferred tax assets
Valuation allowance    
Change in valuation allowance 17,000,000 5,600,000
Current year income tax expense 5,900,000  
Accounting Standards Update 2016-09    
Valuation allowance    
Unrealized excess tax benefits associated with share-based compensation $ 11,200,000 $ 11,200,000