Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 45,206	$ 40,979
Available-for-sale securities	26,984	0
Trade receivables, net of allowances of $108 and $53	26,260	25,336
Inventories, net	24,896	15,824
Prepaids and other current assets	6,987	6,927
Income taxes receivable	50	80
Deferred income tax assets	12,368	4,441
Total current assets	142,751	93,587
Property, plant and equipment, net	9,634	8,499
Goodwill	2,520	2,740
Other intangible assets, net	10,575	12,615
Long-term deferred income tax assets	9,546	25,725
Other assets	628	401
Total assets	175,654	143,567
Liabilities and Shareholders' Equity
Trade payables	47,574	37,192
Accrued liabilities	9,851	9,123
Warranty obligations, current portion	2,246	1,610
Total current liabilities	59,671	47,925
Warranty obligations, non-current	0	28
Income taxes payable, non-current	3,725	2,577
Other long-term liabilities	1,186	1,472
Total liabilities	64,582	52,002
Commitments and contingencies (Note 17)
Common stock - no par value, 75,000 shares authorized, 31,333 and 31,162 shares issued and outstanding	8,033	6,769
Retained earnings	103,347	84,552
Accumulated other comprehensive income (loss)	(308)	244
Total shareholders' equity	111,072	91,565
Total liabilities and shareholders' equity	$ 175,654	$ 143,567