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Summary of Significant Accounting Policies - Additional Information (Detail)
9 Months Ended
Dec. 31, 2015
USD ($)
Customer
Mar. 31, 2015
USD ($)
Customer
Jun. 30, 2013
USD ($)
Payments
Dec. 31, 2015
USD ($)
Customer
Dec. 31, 2014
USD ($)
Customer
Significant Accounting Policies [Line Items]          
Restricted cash $ 307,000 $ 314,000   $ 307,000  
Number of customer represent 10% or more of accounts receivable | Customer 1 1   1  
Number of customer represent 10% or more of product sales | Customer       1 1
Stock-based compensation cost included in inventory $ 0 $ 0   $ 0  
Impairment losses       $ 0 $ 0
Milestone amount receivable upon fulfillment of achievement target order     $ 650,000    
Milestone cumulative orders target     250,000    
Reduction in prepaid expenses and other current assets   549,000      
Reduction in other non-current assets   366,000      
Reduction in long term debt, net   $ 915,000      
Customer Relationships [Member]          
Significant Accounting Policies [Line Items]          
Intangible assets amortization over estimated useful life       5 years  
Brands Associated with Acquired Cell Lines [Member]          
Significant Accounting Policies [Line Items]          
Intangible assets amortization over estimated useful life       40 years  
Product Licenses [Member]          
Significant Accounting Policies [Line Items]          
Intangible assets amortization over estimated useful life       10 years  
Other Intangibles Assets [Member]          
Significant Accounting Policies [Line Items]          
Intangible assets amortization over estimated useful life       7 years  
FDA [Member]          
Significant Accounting Policies [Line Items]          
Milestone amount receivable upon fulfillment of achievement     1,400,000    
CE-Marks & FDA [Member]          
Significant Accounting Policies [Line Items]          
Milestone amount receivable upon fulfillment of achievement     $ 500,000    
Number of milestone payments | Payments     2    
Minimum [Member]          
Significant Accounting Policies [Line Items]          
Plant, machinery and equipment useful life       4 years  
Maximum [Member]          
Significant Accounting Policies [Line Items]          
Plant, machinery and equipment useful life       25 years  
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Significant Accounting Policies [Line Items]          
Concentration risk percentage 37.00% 47.00%      
Customer Concentration Risk [Member] | Sales [Member]          
Significant Accounting Policies [Line Items]          
Concentration risk percentage       56.00% 55.00%