CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 115,932	$ 119,423
Short-term investments	119,842	150,001
Restricted cash	86	87
Receivables and prepaid expenses	11,335	10,799
Inventories	16,446	13,594
Total current assets	263,641	293,904
LONG-TERM ASSETS:
Property and equipment, net	7,090	6,552
Field equipment, net	7,211	6,029
Severance pay fund	84	79
Other long-term assets	992	772
Total long-term assets	15,377	13,432
TOTAL ASSETS	279,018	307,336
CURRENT LIABILITIES:
Trade payables	18,578	16,755
Other payables and accrued expenses	10,850	11,872
Total current liabilities	29,428	28,627
LONG-TERM LIABILITIES:
Long-term loan, net of discount and issuance costs	23,193	23,097
Employee benefit liabilities	2,823	2,057
Other long-term liabilities	3,148	2,735
Total long-term liabilities	29,164	27,889
TOTAL LIABILITIES	58,592	56,516
COMMITMENTS AND CONTINGENCIES	0	0
SHAREHOLDERS' EQUITY:
Ordinary shares no par value, unlimited shares authorized ; issued and outstanding: 84,426,720 shares and 83,778,581 shares at March 31, 2016 and December 31, 2015, respectively	0	0
Additional paid-in capital	645,919	640,406
Accumulated other comprehensive loss	(1,975)	(1,505)
Accumulated deficit	(423,518)	(388,081)
Total shareholders' equity	220,426	250,820
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 279,018	$ 307,336