Accrued Liabilities (Details) - Accrued liabilities (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accrued liabilities [Abstract]
Deferred revenues	$ 2,681	$ 1,704
Current portion of pension liability (see Note 16)	1,378	1,445
Compensation and employee benefits	766	1,104
Taxes payable	802	760
Legal fees payable	647	607
Interest payable	527	329
Warranty obligations	288	281	274
Restructuring costs (see Note 3)	23	205
Other	1,242	1,342
Accrued Liabilities, Total	$ 8,354	$ 7,777