Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets :
Cash and cash equivalents	$ 30,798	$ 30,647
Trade and other accounts receivable, net of allowance for doubtful accounts of $107 and $134, at September 30, 2014 and December 31, 2013, respectively	30,636	29,869
Inventories	52,009	44,736
Prepaid expenses and other current assets	2,779	2,314
Total current assets	116,222	107,566
Property and equipment, net	41,018	44,941
Goodwill	24,462	25,978
Pension asset	10,576	10,568
Other non-current assets	878	1,034
Total assets	193,156	190,087
Current liabilities:
Accounts payable and accrued liabilities	30,696	25,616
Accrued employee compensation	10,270	8,788
Deferred revenue and customer deposits	2,826	1,043
Short-term borrowings and current portion of long-term debt	9,280	7,914
Deferred tax liability	813	890
Total current liabilities	53,885	44,251
Deferred tax liability, long-term	2,008	2,125
Long-term debt, excluding current portion	44	100
Other long-term liabilities	3,201	3,401
Total liabilities	59,138	49,877
Commitments and contingencies (Note 9)
Stockholders' equity:
Common stock, $0.10 par value per share, 40,000 shares authorized; 29,838 and 29,563 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively	2,983	2,953
Additional paid-in capital	276,261	271,928
Accumulated deficit	(155,948)	(151,794)
Accumulated other comprehensive income	10,722	17,123
Total stockholders' equity	134,018	140,210
Total liabilities and stockholders' equity	$ 193,156	$ 190,087