Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 140,622	$ 78,592
Short-term investments	105,256	104,719
Restricted cash	2,134	2,126
Trade receivables, net	36,523	29,567
Receivables and prepaid expenses	14,279	8,105
Inventories	22,555	22,025
Total current assets	321,369	245,134
Long-term assets:
Property and equipment, net	8,442	9,031
Field equipment, net	6,924	9,036
Severance pay fund	113	111
Other long-term assets	2,945	1,986
Total long-term assets	18,424	20,164
Total assets	339,793	265,298
Current liabilities:
Trade payables	26,708	17,206
Other payables and accrued expenses	37,852	32,996
Total current liabilities	64,560	50,202
Long-term liabilities:
Long-term loan, net of discount and issuance costs	149,268	97,342
Deferred revenues	9,929	0
Employee benefit liabilities	2,683	2,453
Other long-term liabilities	1,094	1,737
Total long-term liabilities	162,974	101,532
Total liabilities	227,534	151,734
Commitments and contingencies	0	0
Shareholders’ equity:
Ordinary shares - No par value, Unlimited shares authorized; Issued and outstanding: 93,254,185 shares and 89,478,032 shares at December 31, 2018 and December 31, 2017 respectively;	0	0
Additional paid-in capital	757,314	697,165
Accumulated other comprehensive loss	(1,400)	(1,343)
Accumulated deficit	(643,655)	(582,258)
Total shareholders’ equity	112,259	113,564
Total liabilities and shareholders’ equity	$ 339,793	$ 265,298