Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 92,837	$ 110,707
Investments	23,000	27,751
Accounts receivable, net of reserves of $174 and $167 at March 31, 2016 and December 31, 2015, respectively	14,798	21,652
Inventories	15,765	14,938
Prepaid expenses and other current assets	1,500	1,385
Total current assets	147,900	176,433
Property and equipment, net	46,839	40,108
Long-term deposits and other	69	69
Intangible assets, net	11,859	11,656
Goodwill	7,790	7,482
Total Assets	214,457	235,748
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	3,263	8,302
Accrued expenses and other current liabilities	5,999	4,778
Income taxes payable	1,603	4,198
Total current liabilities	10,865	17,278
Other long-term liabilities	739	781
Long-term deferred revenue	63	66
Deferred tax liability	$ 7,422	$ 6,775
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $.01 par value; 1,250,000 shares authorized, no shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively
Common stock, $.01 par value; 30,000,000 shares authorized, 14,768,325 and 15,036,808 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 148	$ 150
Additional paid-in-capital	58,536	81,685
Accumulated other comprehensive loss	(5,873)	(6,649)
Retained earnings	142,557	135,662
Total stockholders’ equity	195,368	210,848
Total Liabilities and Stockholders’ Equity	$ 214,457	$ 235,748