Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended			12 Months Ended
	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Minimum Y	Dec. 31, 2013 Maximum Y	Dec. 31, 2013 Switzerland	Dec. 31, 2012 Switzerland	Dec. 31, 2011 Switzerland	Dec. 31, 2013 Singapore Y	Dec. 31, 2011 Singapore
Income Taxes [Line Items]
Income tax holiday, aggregate dollar amount						$ 200,000	$ 900,000	$ 900,000		$ 300,000
Income tax holiday, income tax benefits per share						$ 0.01	$ 0.05	$ 0.05		$ 0.02
Tax holiday granted by Singapore economic development board, duration in years									4
Tax holiday granted by Singapore economic development board, extension duration in years									6
Deferred tax assets, domestic		5,476,000	4,264,000
Deferred income tax assets, operating loss carryforwards expiration period				5	15
Deferred income tax assets, net operating loss carryforwards		14,983,000	14,825,000
Valuation Allowance		11,576,000	11,763,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	1,200,000
Undistributed international earnings		78,200,000	67,100,000
Effective tax rate due by recognized tax benefits		300,000	300,000
Unrecognized tax benefits,interest and penalties		$ 30,000	$ 30,000
Tax returns examination statute of limitations period				3 years	4 years