Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 20,397	$ 17,427
Trade receivables, net of allowances of $11 as of March 31, 2012 and $300 as of December 31, 2011	11,901	23,780
Inventories	13,450	11,601
Prepaids and other current assets	3,460	4,433
Income taxes receivable	678	454
Short-term notes receivable	322	317
Deferred income tax assets	77	75
Total current assets	50,285	58,087
Property, plant and equipment, net	4,724	4,405
Goodwill	2,939	2,873
Other intangible assets, net	16,204	16,716
Other assets	606	732
Total assets	74,758	82,813
Current liabilities:
Trade payables	23,461	28,563
Accrued liabilities	6,744	7,218
Warranty obligations, current portion	1,658	1,803
Deferred income tax liabilities	1,191	1,064
Total current liabilities	33,054	38,648
Long-term notes payable	0	5,598
Warranty obligations, non-current	214	214
Income taxes payable, non-current	3,711	3,658
Deferred income tax liabilities, non-current	1,669	1,434
Other long-term liabilities	1,310	1,308
Total liabilities	39,958	50,860
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock - no par value, 75,000 shares authorized, 30,747 and 30,744 shares issued and outstanding as of September 30, 2011 and December 31, 2010, respectively	5,506	5,360
Retained earnings	22,237	19,715
Accumulated other comprehensive income	7,057	6,878
Total stockholders' equity	34,800	31,953
Total liabilities and stockholders' equity	$ 74,758	$ 82,813