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v3.6.0.2

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Cash flows from operating activities: |  |  |
Net loss | $ (17,710) | $ (21,283) | $ (19,398)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Depreciation | 2,180 | 1,615 | 1,285
Stock-based compensation | 12,938 | 7,794 | 4,664
Capital gain from disposal of fixed assets | (2) | (4) | (10)
Amortization of deferred charges related to loan |  |  | 187
Changes in assets and liabilities: |  |  |
Trade receivables | (6,425) | (9,567) | (9,601)
Prepaid expenses and other current assets | (1,028) | 796 | 19
Trade payables | (1,324) | (91) | 540
Accrued expenses and other short term liabilities | 5,302 | 6,270 | 5,541
Severance pay | 136 | 79 | 348
Deferred revenues | 13,269 | 11,554 | 8,517
Other long term liabilities | 11 | 108 | 798
Net cash provided by (used in) operating activities | 7,347 | (2,729) | (7,110)
Cash flows from investing activities: |  |  |
Increase in short-term deposits | (8,390) | (22,001) | (30,758)
Decrease (increase) in long-term deposits | (111) | 11 | 39
Decrease (increase) in restricted cash | (21) | (156) | 230
Proceeds from sale of property and equipment | 2 | 4 |
Purchase of property and equipment | (3,825) | (4,536) | (2,333)
Net cash used in investing activities | (12,345) | (26,678) | (32,822)
Cash flows from financing activities: |  |  |
Proceeds from employee stock plans, net | 4,072 | 2,055 | 382
Payment of deferred equity offering cost |  |  | (1,937)
Net proceeds from initial public offering |  |  | 108,447
Net cash provided by financing activities | 4,072 | 2,055 | 106,892
Increase (decrease) in cash and cash equivalents | (926) | (27,352) | 66,960
Cash and cash equivalents at beginning of period | 49,241 | 76,593 | 9,633
Cash and cash equivalents at end of period | 48,315 | 49,241 | 76,593
Supplemental disclosures of non-cash flow information |  |  |
Deferred rent fixed asset additions | 583 | 1,355 | 1,071
Conversion of preferred stock to common stock |  |  | 43,775
Conversion of liability warrants to equity |  |  | 2,866
Supplemental disclosure of cash flow information: |  |  |
Cash paid for income taxes | $ 246 | $ 354 | $ 304

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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_ProceedsFromStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the increase or decrease in long-term assets during the period. + References No definition available. + Details
Name: | vrns_IncreaseDecreaseInLongTermDeposits
Namespace Prefix: | vrns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The element that represents the increase or decrease in short-term deposits during the period. + References No definition available. + Details
Name: | vrns_IncreaseDecreaseInShortTermDeposits
Namespace Prefix: | vrns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the amount of the reclassification of warrant liability to equity. + References No definition available. + Details
Name: | vrns_ReclassificationOfWarrantLiabilityToEquity
Namespace Prefix: | vrns_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration