Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 30,628	$ 29,289
Trade and other accounts receivable, net of allowance for doubtful accounts of $477 and $577 at March 31, 2012 and December 31, 2011, respectively	43,147	36,131
Inventories, net	30,606	27,232
Prepaid expenses and other current assets	3,158	3,125
Total current assets	107,539	95,777
Property and equipment, net	31,922	28,541
Intangible assets, net	985	1,111
Goodwill	25,730	24,887
Pension asset	6,815	6,359
Other non-current assets	59	261
Total assets	173,050	156,936
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	35,051	37,145
Accrued warranty	287	258
Accrued employee compensation	5,850	6,243
Short-term borrowings and current portion of long-term debt	7,155	5,431
Deferred tax liability	499	499
Total current liabilities	48,842	49,576
Deferred tax liability, long-term	944	933
Long-term debt, excluding current portion	3,541	68
Other long-term liabilities	778	3,028
Total liabilities	54,105	53,605
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.10 par value per share, 40,000 shares authorized; 29,127 and 28,174 shares issued and outstanding at March 31, 2012 and December 31, 2011, respectively	2,910	2,815
Additional paid-in capital	265,414	252,907
Accumulated deficit	(162,517)	(163,021)
Accumulated other comprehensive income	13,138	10,630
Total stockholders' equity	118,945	103,331
Total liabilities and stockholders' equity	$ 173,050	$ 156,936