Reserve for Product Warranties - Schedule of Changes in Company's Warranty Reserve and Related Costs (Detail) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Product Warranties Disclosures [Abstract]
Warranty reserve, Beginning balance	$ 516	$ 473	$ 503
Cost of warranty claims and expiry of contracts	(318)	(24)	(90)
Warranty accrual	35	67	60
Warranty reserve, Ending balance	$ 233	$ 516	$ 473

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(5))

-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Definition

Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

+ Details

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- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

+ References

+ Details

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