Summary of Significant Accounting Policies - Additional Information (Detail)			3 Months Ended		9 Months Ended
	Dec. 31, 2016 USD ($) Holding Customer	Mar. 31, 2016 USD ($) Customer	Dec. 31, 2016 USD ($) Holding Customer	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Holding Customer	Dec. 31, 2015 USD ($) Customer	Oct. 14, 2016 USD ($)	Jun. 30, 2013 USD ($)
Significant Accounting Policies [Line Items]
Restricted cash	$ 299,000	$ 317,000	$ 299,000		$ 299,000
Number of investment holdings | Holding	89		89		89
Number of customer represent 10% or more of accounts receivable | Customer	1	1	1		1
Number of customer represent 10% or more of product sales | Customer	1		1		1	1
Stock-based compensation cost included in inventory	$ 0	$ 0	$ 0		$ 0
Impairment losses					0	$ 0
Milestone amount receivable upon fulfillment of achievement								$ 1,300,000
Milestone amount receivable upon fulfillment of achievement								1,400,000
Milestone amount receivable upon fulfillment of achievement								$ 1,500,000
Milestone Revenue Recognized				$ 1,300,000
Provision for pension benefit obligation			$ (46,000)		$ (129,000)	$ 1,747,000
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
Minimum [Member]
Significant Accounting Policies [Line Items]
Debt instrument, interest rate	2.00%		2.00%		2.00%
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	33.00%	58.00%
Customer Concentration Risk [Member] | Sales [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage					59.00%	56.00%
Senior Secured Notes Due 2023 [Member]
Significant Accounting Policies [Line Items]
Payment to cash reserve account held by collateral agent	$ 5,000,000		$ 5,000,000		$ 5,000,000		$ 5,000,000
Debt instrument, interest rate	12.00%		12.00%		12.00%