Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 36,815	$ 28,924
Restricted cash	34,424	23,761
Trade accounts receivable, less allowances of $7,285 and $9,111 at December 31, 2014 and 2013, respectively	61,358	70,811
Inventories	59,846	72,678
Deferred income taxes	37,413	39,999
Prepaid expenses and other current assets	26,552	28,933
Total current assets	256,408	265,106
Property, plant and equipment, net	48,549	54,372
Patents and other intangible assets, net	7,152	9,046
Goodwill	53,565	53,565
Deferred income taxes	18,541	22,394
Other long-term assets	8,970	7,492
Total assets	393,185	411,975
Current liabilities:
Trade accounts payable	13,223	20,674
Other current liabilities	53,220	49,676
Total current liabilities	66,443	70,350
Long-term debt		20,000
Deferred income taxes	229	13,026
Other long-term liabilities	26,886	12,736
Total liabilities	93,558	116,112
Contingencies (Note 17)
Shareholders’ equity
Common shares $0.10 par value; 50,000,000 shares authorized; 18,611,495 and 18,102,335 issued and outstanding as of December 31, 2014 and 2013, respectively	1,861	1,810
Additional paid-in capital	232,788	216,653
Retained earnings	65,360	73,897
Accumulated other comprehensive (loss) income	(382)	3,503
Total shareholders’ equity	299,627	295,863
Total liabilities and shareholders’ equity	$ 393,185	$ 411,975