Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 18,379	$ 12,146
Restricted deposit	515	493
Marketable securities and short-term deposits	31,111	35,713
Trade receivables	21,609	13,475
Other accounts receivable and prepaid expenses	3,374	3,670
Inventories	8,668	9,819
TOTAL CURRENT ASSETS	83,656	75,316
PROPERTY AND EQUIPMENT, NET	6,871	2,748
NON-CURRENT ASSETS:
Long-term marketable securities	70,899	75,538
Operating lease right of use	12,023
Long-term prepaid expenses and lease deposits	977	1,229
Deferred income taxes	5,469	3,580
Severance pay fund	15,661	14,158
Intangible assets, net	765	1,078
Goodwill	6,243	6,243
TOTAL NON-CURRENT ASSETS	112,037	101,826
TOTAL ASSETS	202,564	179,890
CURRENT LIABILITIES:
Trade payables	8,338	9,579
Accrued compensation and benefits	7,709	8,255
Income tax accruals and payables	2,245	1,404
Operating lease liability	2,520
Accrued expenses and other accounts payable	3,283	3,461
TOTAL CURRENT LIABILITIES	24,095	22,699
NON-CURRENT LIABILITIES:
Deferred income taxes	127	151
Accrued severance pay	15,944	14,348
Operating lease liability	10,225
Accrued pensions	801	827
TOTAL NON-CURRENT LIABILITIES	27,097	15,326
STOCKHOLDERS’ EQUITY:
Common stock, $ 0.001 par value - Authorized shares: 50,000,000 shares at September 30, 2019 and December 31, 2018; issued and outstanding shares: 23,003,109 and 22,265,971 shares at September 30, 2019 and December 31, 2018, respectively	23	22
Additional paid-in capital	384,737	378,855
Treasury stock at cost	(114,940)	(122,325)
Accumulated other comprehensive loss	(774)	(2,324)
Accumulated deficit	(117,674)	(112,363)
TOTAL STOCKHOLDERS’ EQUITY	151,372	141,865
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 202,564	$ 179,890