Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 98,047	$ 110,707
Investments	22,250	27,751
Accounts receivable, net of reserves of $224 and $167 at September 30, 2016 and December 31, 2015, respectively	21,833	21,652
Inventories	18,020	14,938
Prepaid expenses and other current assets	924	1,385
Total current assets	161,074	176,433
Property and equipment, net	51,058	40,108
Long-term deposits and other	69	69
Intangible assets, net	11,171	11,656
Goodwill	7,690	7,482
Total Assets	231,062	235,748
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	1,949	8,302
Accrued expenses and other current liabilities	5,423	4,778
Income taxes payable	217	4,198
Total current liabilities	7,589	17,278
Other long-term liabilities	2,556	781
Long-term deferred revenue	59	66
Deferred tax liability	6,315	6,775
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $.01 par value; 1,250 shares authorized, no shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively
Common stock, $.01 par value; 60,000 and 30,000 shares authorized, 14,623 and 15,037 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	146	150
Additional paid-in-capital	60,374	81,685
Accumulated other comprehensive loss	(6,101)	(6,649)
Retained earnings	160,124	135,662
Total stockholders’ equity	214,543	210,848
Total Liabilities and Stockholders’ Equity	$ 231,062	$ 235,748