Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 30,647	$ 28,739
Trade and other accounts receivable, net of allowance for doubtful accounts of $134 and $157 at December 31, 2013 and 2012, respectively	29,869	33,420
Inventories	44,736	41,620
Prepaid expenses and other current assets	2,314	3,228
Total current assets	107,566	107,007
Property and equipment, net	44,941	36,235
Intangible assets, net	369	669
Goodwill	25,978	25,416
Pension asset	10,568	6,939
Other non-current assets	665	206
Total assets	190,087	176,472
Current liabilities:
Accounts payable and accrued liabilities	25,436	27,181
Accrued warranty	180	269
Accrued employee compensation	8,788	4,743
Deferred revenue	1,043	6,408
Short-term borrowings and current portion of long-term debt	7,914	9,452
Deferred tax liability	890	980
Total current liabilities	44,251	49,033
Deferred tax liability, long-term	2,125	1,384
Long-term debt, excluding current portion	100	83
Other long-term liabilities	3,401	1,039
Total liabilities	49,877	51,539
Commitments and contingencies (Note 11 and Note 13)
Stockholders’ equity:
Common stock, $0.10 par value per share, 40,000 shares authorized; 29,563 and 29,162 shares issued and outstanding at December 31, 2013 and 2012, respectively	2,953	2,913
Additional paid-in capital	271,928	267,623
Accumulated deficit	(151,794)	(158,134)
Accumulated other comprehensive income	17,123	12,531
Total stockholders’ equity	140,210	124,933
Total liabilities and stockholders’ equity	$ 190,087	$ 176,472