CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 80,871	$ 119,423
Short-term investments	119,979	150,001
Restricted cash	99	87
Receivables and prepaid expenses	12,534	10,799
Inventories	21,215	13,594
Total current assets	234,698	293,904
LONG-TERM ASSETS:
Property and equipment, net	8,813	6,552
Field equipment, net	5,850	6,029
Severance pay fund	82	79
Other long-term assets	1,076	772
Total long-term assets	15,821	13,432
TOTAL ASSETS	250,519	307,336
CURRENT LIABILITIES:
Trade payables	22,007	16,755
Other payables and accrued expenses	12,611	11,872
Total current liabilities	34,618	28,627
LONG-TERM LIABILITIES:
Long-term loan, net of discount and issuance costs	23,292	23,097
Employee benefit liabilities	2,592	2,057
Other long-term liabilities	3,371	2,735
Total long-term liabilities	29,255	27,889
TOTAL LIABILITIES	63,873	56,516
COMMITMENTS AND CONTINGENCIES	0	0
SHAREHOLDERS' EQUITY:
Ordinary shares no par value, unlimited shares authorized; issued and outstanding: 85,774,774 shares and 83,778,581 shares at June 30, 2016 and December 31, 2015, respectively	0	0
Additional paid-in capital	652,460	640,406
Accumulated other comprehensive loss	(1,684)	(1,505)
Accumulated deficit	(464,130)	(388,081)
Total shareholders' equity	186,646	250,820
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 250,519	$ 307,336