Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 37,489	$ 45,206
Available-for-sale securities	49,748	26,984
Trade receivables, net of allowances of $31 and $108	12,635	26,260
Inventories	28,379	24,896
Prepaids and other current assets	4,469	6,987
Income taxes receivable	170	50
Deferred income tax assets, current portion	9,511	12,368
Total current assets	142,401	142,751
Property, plant and equipment, net	10,544	9,634
Goodwill	2,372	2,520
Other intangible assets, net	10,106	10,575
Long-term deferred income tax assets	5,087	9,546
Other assets	485	628
Total assets	170,995	175,654
Liabilities and Shareholders' Equity
Trade payables	32,702	47,574
Accrued liabilities	7,340	9,851
Warranty obligations	2,819	2,246
Total current liabilities	42,861	59,671
Income taxes payable	3,614	3,725
Other long-term liabilities	1,759	1,186
Total liabilities	$ 48,234	$ 64,582
Commitments and contingencies (Note 13)
Shareholders' equity:
Common stock - no par value, 75,000 shares authorized, 31,551 and 31,333 shares issued and outstanding	$ 6,905	$ 8,033
Retained earnings	116,503	103,347
Accumulated other comprehensive loss	(647)	(308)
Total shareholders' equity	122,761	111,072
Total liabilities and shareholders' equity	$ 170,995	$ 175,654