Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.4.0.3
Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Mar. 31, 2016
USD ($)
a
Mar. 31, 2015
USD ($)
a
Mar. 31, 2014
USD ($)
Apr. 02, 2013
a
Property, Plant and Equipment [Line Items]          
Depreciation   $ 1,500,000 $ 1,000,000 $ 600,000  
Area of Real Estate Property | a         16
Proceeds from Sale of Property Held-for-sale $ 264,000        
Impairment of Long-Lived Assets to be Disposed of   $ 0 100,000 $ 0  
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost     1,600,000    
valuation allowance DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost     1,600,000    
Cumulative Effect of New Accounting Principle in Period of Adoption     $ 0    
Machinery and Equipment [Member] | Minimum [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Useful Life   5 years      
Machinery and Equipment [Member] | Maximum [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Useful Life   7 years      
Land available-for-sale [Member]          
Property, Plant and Equipment [Line Items]          
Area of Real Estate Property | a     4    
Land [Member]          
Property, Plant and Equipment [Line Items]          
Area of Real Estate Property | a   12      
3570 Computer and office Equipment [Member] | Minimum [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Useful Life   2 years      
3570 Computer and office Equipment [Member] | Maximum [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Useful Life   5 years      
Accumulated Deficit [Member]          
Property, Plant and Equipment [Line Items]          
Cumulative Effect of New Accounting Principle in Period of Adoption [1]     $ (87,000)    
[1] See Note 3 and Note 9 for discussion of our adoption of ASU 2016-09 (as defined in Note 3).