Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 39,846	$ 63,663
Trade accounts receivable, less allowance for doubtful accounts of $9,680 and $8,923 at March 31, 2016 and December 31, 2015, respectively	55,267	59,839
Inventories	59,787	57,563
Prepaid expenses and other current assets	19,067	31,187
Total current assets	173,967	212,252
Property, plant and equipment, net	53,645	52,306
Patents and other intangible assets, net	5,602	5,302
Goodwill	53,565	53,565
Deferred income taxes	56,439	57,306
Other long-term assets	19,557	19,491
Total assets	362,775	400,222
Current liabilities:
Trade accounts payable	13,524	16,391
Other current liabilities	45,472	65,597
Total current liabilities	58,996	81,988
Other long-term liabilities	28,308	27,923
Total liabilities	$ 87,304	$ 109,911
Contingencies (Note 11)
Shareholders’ equity:
Common shares $0.10 par value; 50,000,000 shares authorized; 18,186,835 and 18,659,696 issued and outstanding as of March 31, 2016 and December 31, 2015, respectively	$ 1,819	$ 1,866
Additional paid-in capital	212,720	232,126
Retained earnings	66,444	62,551
Accumulated other comprehensive loss	(5,512)	(6,232)
Total shareholders’ equity	275,471	290,311
Total liabilities and shareholders’ equity	$ 362,775	$ 400,222