Organization and Summary of Significant Accounting Policies - Additional Information (Detail)								1 Months Ended	2 Months Ended	12 Months Ended
	Feb. 10, 2016 USD ($) $ / shares shares	Oct. 26, 2015 USD ($) shares	Mar. 31, 2015 USD ($) Customer shares	Jan. 29, 2015 USD ($) $ / shares shares	Nov. 25, 2014 USD ($) $ / shares shares	Jun. 30, 2013 USD ($) Payments	Feb. 16, 2012 shares	Apr. 30, 2014 USD ($) $ / shares shares	Mar. 30, 2015	Mar. 31, 2016 USD ($) Customer $ / shares shares	Mar. 31, 2015 USD ($) Customer shares	Mar. 31, 2014 USD ($) Customer shares	Aug. 03, 2015 USD ($)	Mar. 31, 2013 USD ($)
Significant Accounting Policies [Line Items]
Common stock, shares issued | shares			17,020,574							25,408,950	17,020,574
Common stock, par value | $ / shares
Stock issued during period value										$ 36,835,000	$ 52,561,000	$ 247,000
Common share consolidation ratio											0.32
Existing ordinary shares issued 32 new ordinary shares | shares										100
Proceeds from private placement					$ 27,100,000
Covenants with lenders to maintain minimum cash holdings										$ 10,000,000
Number of warrants exercised | shares		4,981,052
Number of warrants cancelled | shares		18,948
Issue of shares upon exercise of warrants, Shares | shares		3,984,823
Proceeds from warrants exercise		$ 35,100,000									$ 484,000
Accumulated deficit			$ (74,354,000)							(108,232,000)	(74,354,000)
Cash and cash equivalents			37,525,000							44,100,000	37,525,000	$ 7,192,000		$ 4,219,000
Restricted cash			314,000							317,000	314,000
Allowance for doubtful accounts			$ 150,000							$ 126,000	$ 150,000
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	1
Stock-based compensation cost included in inventory			$ 0							$ 0	$ 0
Plant, machinery and equipment useful life										8 years
Property and equipment impairment losses										$ 0	0	$ 0
Impairment losses										0	$ 0	0
Milestone revenue recognized										$ 500,000		$ 2,750,000
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
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										58.00%	47.00%
Customer Concentration Risk [Member] | Sales [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage										57.00%	55.00%	54.00%
MidCap Financial Trust [Member]
Significant Accounting Policies [Line Items]
Covenants with lenders to maintain minimum cash holdings													$ 10,000,000
MidCap Financial Trust [Member] | Secured Credit Facility Agreement [Member]
Significant Accounting Policies [Line Items]
Drew down with secured bank facility agreement													15,000,000
MidCap Financial Trust [Member] | Amended Secured Credit Facility Agreement [Member]
Significant Accounting Policies [Line Items]
Drew down with secured bank facility agreement													30,000,000
Line of credit facility, additional borrowing capacity													$ 20,000,000
Distribution and Supply Agreement [Member]
Significant Accounting Policies [Line Items]
Agreement initial term				20 years
Milestone amount receivable upon fulfillment of achievement				$ 59,000,000
Agreement of milestone payment, description										Ortho has agreed to pay the Company one time payments upon the achievement of certain milestones totaling in the aggregate $59 million and reimburse the Company for the cost of goods sold incurred for MosaiQTM instruments and associated replacement parts sold to Ortho, as well as the cost of ancillary products sold to Ortho (other than quality control products), plus 10% of such ancillary product costs.
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
CE-Marks [Member]
Significant Accounting Policies [Line Items]
Milestone amount receivable upon fulfillment of achievement						2,750,000
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
Ordinary Shares [Member]
Significant Accounting Policies [Line Items]
Stock issued during period value	$ 36,800,000									$ 36,835,000	$ 52,561,000	$ 247,000
Issue of shares, net of issue costs, Shares | shares	4,444,445									4,444,445	7,444,445	60,044
Company's closing share price | $ / shares	$ 9.00
Issue of shares upon exercise of warrants, Shares | shares										3,922,719	62,104
Initial Public Offering [Member]
Significant Accounting Policies [Line Items]
Issued warrants to acquire common shares | shares								5,000,000
Common stock, par value | $ / shares								$ 0
Ordinary share acquired for each unit of warrant | shares								0.8
Exercise price of warrants | $ / shares								$ 8.80
Stock issued during period value								$ 40,000,000
Private Placement [Member]
Significant Accounting Policies [Line Items]
Ordinary share acquired for each unit of warrant | shares					1
Exercise price of warrants | $ / shares					$ 0.01
Issue of shares, net of issue costs, Shares | shares					2,000,000
Shares issued, price per share | $ / shares					$ 9.50
Pre-funded warrants, issued | shares					850,000
Warrants price per warrant | $ / shares					$ 9.49
Aggregate subscription price of shares and warrants					$ 27,100,000
Proceeds from private placement, net of issuance cost					$ 24,700,000
Subscription Agreement [Member] | Ordinary Shares [Member]
Significant Accounting Policies [Line Items]
Common stock, shares issued | shares				444,445
Company's closing share price | $ / shares				$ 22.50
A Preference Shares [Member]
Significant Accounting Policies [Line Items]
Preferred shares issued | shares							14,023,552
Preference shares repurchased | shares							1,553,598
B Preference Shares [Member]
Significant Accounting Policies [Line Items]
Preferred shares issued | shares							10,640,664
A Ordinary Shares [Member]
Significant Accounting Policies [Line Items]
Common stock, shares issued | shares							56,936
A Deferred shares [Member]
Significant Accounting Policies [Line Items]
Deferred shares issued | shares							18,978
B Deferred shares [Member]
Significant Accounting Policies [Line Items]
Deferred shares issued | shares							37,957
C Deferred shares [Member]
Significant Accounting Policies [Line Items]
Deferred shares issued | shares							168,227
7% Cumulative Redeemable Preference Shares [Member]
Significant Accounting Policies [Line Items]
Cumulative redeemable preference shares, issued | shares			666,665							666,665	666,665
Redeemable preference shares, share price | $ / shares				$ 22.50
7% Cumulative Redeemable Preference Shares [Member] | Subscription Agreement [Member]
Significant Accounting Policies [Line Items]
Cumulative redeemable preference shares, issued | shares				666,665
Dividend percentage									7.00%
Redeemable preference shares, par value | $ / shares				$ 0
Redeemable preference shares, share price | $ / shares				$ 22.50
Aggregate subscription price				$ 25,000,000