Summary of Company's Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Total debt	$ 97,741	$ 90,775
Current portion	(4,909)	(5,306)
Long-term debt, less current maturities	$ 92,832	$ 85,469
U.S. Term Note
Debt Instrument [Line Items]
Interest Rate	2.11%	2.00%
Total debt	$ 46,875	$ 49,375
Europe Term Loan
Debt Instrument [Line Items]
Interest Rate	1.50%	1.81%
Total debt	$ 20,369	$ 23,963
U.S. Revolving Note
Debt Instrument [Line Items]
Interest Rate	1.92%	1.92%
Total debt	$ 12,000	$ 12,000
DEG China Loan
Debt Instrument [Line Items]
Interest Rate	4.25%	4.25%
Total debt	$ 3,497	$ 4,805
DEG Vietnam Loan
Debt Instrument [Line Items]
Interest Rate	5.21%
Total debt	$ 15,000
Capital Lease
Debt Instrument [Line Items]
Interest Rate		4.20%
Total debt		$ 632

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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