Varonis Systems (VRNS) 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 03, 2015
Entity Registrant Name	VARONIS SYSTEMS INC
Entity Central Index Key	1,361,113
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		24,920,021
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 69,778	$ 76,593
Short-term deposits	35,102	35,102
Trade receivables (net of allowance for doubtful accounts of $207 and $149 at June 30, 2015 and December 31, 2014, respectively)	28,949	37,869
Prepaid expenses and other current assets	2,768	2,962
Total current assets	136,597	152,526
Long-term assets:
Other assets	570	332
Property and equipment, net	6,426	3,989
Total long-term assets	6,996	4,321
Total assets	143,593	156,847
Current liabilities:
Trade payables	2,584	2,703
Accrued expenses and other liabilities	16,867	16,754
Deferred revenues	33,589	33,753
Total current liabilities	53,040	53,210
Long-term liabilities:
Deferred revenues	3,031	3,464
Severance pay	1,466	1,449
Other liabilities	4,820	3,698
Total long-term liabilities	9,317	8,611
Stockholders’ equity:
Common stock of $ 0.001 par value - Authorized: 200,000,000 shares at June 30, 2015 and December 31, 2014; Issued and outstanding: 24,908,121 shares at June 30, 2015 and 24,685,604 shares at December 31, 2014	25	25
Accumulated other comprehensive income (loss)	610	(326)
Additional paid-in capital	166,744	162,478
Accumulated deficit	(86,143)	(67,151)
Total stockholders’ equity	81,236	95,026
Total liabilities and stockholders’ equity	$ 143,593	$ 156,847

Consolidated Balance Sheets (C3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 207	$ 149
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	200,000,000	200,000,000
Common stock, issued (in shares)	24,908,121	24,685,604
Common stock, outstanding (in shares)	24,908,121	24,685,604

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Licenses	$ 16,011	$ 14,422	$ 26,169	$ 22,475
Maintenance and services	13,139	10,194	25,967	19,596
Total revenues	29,150	24,616	52,136	42,071
Cost of revenues	2,863	2,491	5,696	4,533
Gross profit	26,287	22,125	46,440	37,538
Operating costs and expenses:
Research and development	7,799	6,832	15,532	13,271
Sales and marketing	21,264	17,186	41,455	31,427
General and administrative	3,760	2,665	7,540	5,330
Total operating expenses	32,823	26,683	64,527	50,028
Operating loss	(6,536)	(4,558)	(18,087)	(12,490)
Financial income (expenses) and other, net	402	74	(639)	36
Loss before income taxes	(6,134)	(4,484)	(18,726)	(12,454)
Income taxes	(188)	(155)	(266)	(259)
Net loss	$ (6,322)	$ (4,639)	$ (18,992)	$ (12,713)
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (0.25)	$ (0.19)	$ (0.77)	$ (0.71)
Weighted average number of shares used in computing net loss per share of common stock, basic and diluted (in shares)	24,875,227	24,455,259	24,809,006	17,843,306

Unaudited Consolidated Stateme5

Unaudited Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net loss	$ (6,322)	$ (4,639)	$ (18,992)	$ (12,713)
Other comprehensive income:
Unrealized gains on derivative instruments	1,056	69	936	47
Total other comprehensive income	1,056	69	936	47
Comprehensive loss	$ (5,266)	$ (4,570)	$ (18,056)	$ (12,666)

Consolidated Statements of Chan

Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Deficiency) (Unaudited) - USD ($) $ in Thousands		Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance as of January 1, 2014 (in shares) at Dec. 31, 2013		15,082,141	3,953,314
Balance as of January 1, 2014 at Dec. 31, 2013		$ 43,775	$ 4	$ 4,741		$ (47,753)	$ (43,008)
Issuance of common stock upon initial public offering (net of issuance costs of $2,376) (in shares)			5,300,436
Issuance of common stock upon initial public offering (net of issuance costs of $2,376)			$ 5	106,066			106,071
Conversion of preferred stock to common stock upon initial public offering (in shares)		(15,082,141)	15,082,141
Conversion of preferred stock to common stock upon initial public offering		$ (43,775)	$ 15	43,760			43,775
Conversion of warrants to purchase preferred stock into warrants to purchase common stock				2,866			2,866
Exercise of warrants to purchase common stock (in shares)			107,217
Exercise of warrants to purchase common stock	[1]
Stock-based compensation expense				4,664			4,664
Exercise of stock options (in shares)			238,951
Exercise of stock options				381			382
Exercise of restricted stock units (in shares)			3,545
Exercise of restricted stock units	[1]
Unrealized gains on derivative instruments					$ (326)
Net loss						$ (19,398)	(19,398)
Balance as of December 31, 2014 (in shares) at Dec. 31, 2014			24,685,604
Balance as of December 31, 2014 at Dec. 31, 2014			$ 25	162,478	(326)	(67,151)	95,026
Stock-based compensation expense				3,647			$ 3,647
Exercise of stock options (in shares)			218,437				202,771
Exercise of stock options				619			$ 619
Exercise of restricted stock units (in shares)			4,080
Exercise of restricted stock units
Unrealized gains on derivative instruments					936		936
Net loss						(18,992)	(18,992)
Balance as of December 31, 2014 (in shares) at Jun. 30, 2015			24,908,121
Balance as of December 31, 2014 at Jun. 30, 2015			$ 25	$ 166,744	$ 610	$ (86,143)	$ 81,236
[1]	Represents an amount lower than $1.

Consolidated Statements of Cha7

Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Deficiency) (Unaudited) (Parentheticals)	12 Months Ended
	Dec. 31, 2014USD ($)
Additional Paid-in Capital [Member]
Issuance costs	$ 2,376

Unaudited Consolidated Stateme8

Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (18,992)	$ (12,713)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	689	534
Stock-based compensation	$ 3,647	1,624
Amortization of deferred charges related to loan		$ 31
Capital gain from disposal of fixed asset	$ (1)
Changes in assets and liabilities:
Trade receivables	8,920	$ 9,414
Prepaid expenses and other current assets	1,260	18
Trade payables	(119)	137
Accrued expenses and other liabilities	439	721
Increase in severance pay, net	17	339
Deferred revenues	(597)	(686)
Other long term liabilities	(689)	1
Net cash used in operating activities	$ (5,426)	(580)
Cash flows from investing activities:
Decrease in short-term deposit		4,242
Decrease (increase) in long-term deposits	$ (65)	46
Decrease (increase) in restricted cash	(173)	260
Purchase of property and equipment	(1,770)	(1,288)
Net cash provided by (used in) investing activities	(2,008)	3,260
Cash flows from financing activities:
Exercise of employee stock options	$ 619	30
Payment of deferred equity offering cost		(662)
Net proceeds from initial public offering		108,447
Net cash provided by financing activities	$ 619	107,815
Increase (decrease) in cash and cash equivalents	(6,815)	110,495
Cash and cash equivalents at beginning of period	76,593	9,633
Cash and cash equivalents at end of period	$ 69,778	120,128
Supplemental disclosures of non-cash flow information:
Conversion of preferred stock to common stock		43,775
Conversion of liability warrants to equity		$ 2,866
Deferred rent fixed asset additions	$ 1,355
Deferred offering costs not yet paid		$ 519
	$ 1,355	47,160
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 163	$ 46

Note 1 - General

Note 1 - General	6 Months Ended
	Jun. 30, 2015
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1:- GENERAL a. Varonis Systems, Inc. (“VSI” and together with its subsidiaries, collectively, the “Company”) was incorporated under the laws of the State of Delaware on November 3, 2004 and commenced operations on January 1, 2005. VSI has five wholly-owned subsidiaries: Varonis Systems Ltd. (“VSL”) incorporated under the laws of Israel on November 24, 2004; Varonis UK (“VSUK”) incorporated under the laws of England on March 14, 2007; Varonis Systems (Deutschland) GmbH (“VSG”) incorporated under the laws of Germany on July 6, 2011; Varonis France SAS (“VSF”) incorporated under the laws of France on February 22, 2012; and Varonis Systems Corp. (“VSC”) incorporated under the laws of British Columbia, Canada on February 19, 2013. The Company’s software products and services allow enterprises to map, analyze, manage and migrate their unstructured data. The Company specializes in human-generated data, a type of unstructured data that includes an enterprise’s word processing documents, spreadsheets, presentations, audio files, video files, emails, text messages, and any other data created by employees. Through its products the DatAdvantage platform, DataPrivilege, IDU Classification Framework, DatAnywhere, Data Transport Engine and DatAnswers, the software platform allows enterprises to realize the value of their human-generated data in ways that are not resource-intensive and easy to implement. VSI markets and sells products and services mainly in the United States. VSUK, VSG, VSF and VSC resell the Company’s products and services mainly in the UK, Germany, France and rest of Europe, and Canada, respectively. The Company primarily sells its products and services to a global network of distributors and Value Added Resellers (VARs), which sell the products to end users customers. b. Initial Public Offering: On March 5, 2014, the Company closed its initial public offering (“IPO”) whereby 5,300,436 shares of common stock were sold by the Company to the public (inclusive of 500,436 shares of common stock pursuant to the full exercise of an overallotment option granted to the underwriters). The aggregate net proceeds received by the Company from the offering were approximately $106,071, net of underwriting discounts and commissions and offering expenses payable by the Company. Upon the closing of the IPO, all shares of the Company’s outstanding convertible preferred stock automatically converted into 15,082,141 shares of common stock, and outstanding warrants to purchase convertible preferred stock automatically converted into warrants to purchase 122,572 shares of common stock. On March 13, 2014, all such warrants were exercised, in a net share settlement, resulting in the issuance of 107,217 shares of common stock. c. Basis of Presentation: The accompanying unaudited consolidated interim financial statements have been prepared in accordance with Article 10 of Regulation S-X, “Interim Financial Statements” and the rules and regulations for Form 10-Q of the Securities and Exchange Commission (the “SEC”). Pursuant to those rules and regulations, the Company has condensed or omitted certain information and footnote disclosure it normally includes in its annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). In management’s opinion, the Company has made all adjustments (consisting only of normal, recurring adjustments, except as otherwise indicated) necessary to fairly present its consolidated financial position, results of operations and cash flows. The Company’s interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the 2014 consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for its fiscal year ended December 31, 2014 filed with the SEC on February 19, 2015 (the “2014 Form 10-K”). There have been no changes in the significant accounting policies from those that were disclosed in the audited consolidated financial statements for the fiscal year ended December 31, 2014 included in the 2014 Form 10-K. d. Derivative Instruments: The Company’s primary objective for holding derivative instruments is to reduce its exposure to foreign currency rate changes. The Company reduces its exposure by entering into forward foreign exchange contracts with respect to operating expenses that are forecast to be incurred in currencies other than the U.S. dollar. A majority of the Company’s revenues and a majority of its operating expenditures are transacted in U.S. dollars. However, certain operating expenditures are incurred in or exposed to other currencies, primarily the New Israeli Shekel (“NIS”). The Company has established forecasted transaction currency risk management programs to protect against fluctuations in fair value and the volatility of future cash flows caused by changes in exchange rates. The Company’s currency risk management program includes forward foreign exchange contracts designated as cash flow hedges. These forward foreign exchange contracts generally mature within 12 months. The Company does not enter into derivative financial instruments for trading purposes. Derivative instruments measured at fair value and their classification on the consolidated balance sheets are presented in the following table (in thousands): Assets as of Liabilities as of Notional Fair Notional Fair Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities $ 16,097 $ 610 $ 30,662 $ (326 ) For the three and six months ended June 30, 2015, the unaudited consolidated statements of operations reflect a loss of approximately $74 and $598, respectively, related to the effective portion of foreign currency forward contracts. For the three and six months ended June 30, 2014, the unaudited consolidated statements of operations reflect a gain of approximately $18 related to the effective portion of foreign currency forward contracts. There was no ineffective portion for the three and six months ended June 30, 2015 and 2014. e. Recently Issued Accounting Pronouncements: In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers”, an updated standard on revenue recognition. ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies reporting using IFRS and US GAAP. The core principle of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration (that is, payment) to which the company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures about revenue, provide guidance for transactions that were not previously addressed comprehensively (for example, service revenue and contract modifications) and improve guidance for multiple-element arrangements. ASU 2014-09 was initially effective for annual and interim reporting periods beginning after December 15, 2016 and may be adopted either on a full retrospective or modified retrospective approach. On July 9, 2015, the FASB approved a one year deferral of the effective date of the ASU. The revised effective date is for annual reporting periods beginning after December 15, 2017 and interim periods therein, with an early adoption permitted as of the original effective date. The Company is still evaluating the impact of implementation of this standard on its consolidated financial statements.

Note 2 - Fair Value Measurement

Note 2 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 2:- FAIR VALUE MEASUREMENTS The Company evaluates assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level to classify them for each reporting period. There have been no transfers between fair value measurements levels during the six months ended June 30, 2015. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis whereby inputs, used in valuation techniques, are assigned a hierarchical level. The following are the hierarchical levels of inputs to measure fair value: • Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2: Observable inputs that reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. • Level 3: Unobservable inputs reflecting our own assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. The following table sets forth the Company’s assets and liabilities that were measured at fair value as of June 30, 2015 and December 31, 2014 by level within the fair value hierarchy (in thousands): As of June 30, 2015 (unaudited) As of December 31, 2014 Level I Level II Level III Fair Level I Level II Level III Fair Financial assets: Forward foreign exchange contracts — 610 — 610 — — — — Financial liabilities: Forward foreign exchange contracts — — — — — (326 ) — (326 ) Total financial assets (liabilities) $ — $ 610 $ — $ 610 $ — $ (326 ) $ — $ (326 )

Note 3 - Commitments and Contin

Note 3 - Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2015
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 3:- COMMITMENTS AND CONTINGENT LIABILITIES a. Liens: The Company has several liens granted to financial institutions mainly to secure various operating lease agreements in connection with its office space. b. Lease Commitments: The Company rents its facilities in all locations under operating leases with lease periods expiring from 2015 - 2026. The lease agreements of VSI and VSL include extension options. VSL leases cars for its employees under operating lease agreements expiring at various dates from 2015 – 2018. Aggregate minimum rental commitments under non-cancelable leases as of June 30, 2015 for the upcoming years were as follows: unaudited 2015 $ 1,604 2016 3,788 2017 3,803 2018 3,717 2019 3,772 Thereafter 17,419 $ 34,103 Total rent expenses for the six months ended June 30, 2015 and the year ended December 31, 2014 were $1,985 and $2,986, respectively. c. On March 31, 2014, the Company entered into a promissory note and related security documents with Bank Leumi USA. The Company may borrow up to $7,000 against certain of its accounts receivable outstanding amount, based on several conditions, at an annual interest rate of the Wall Street Journal Prime Rate less 0.15%. As of June 30, 2015, that rate amounted to 3.1%. This promissory note enables the Company, among other things, to engage in foreign currency hedging transactions with Bank Leumi USA to manage exposure to foreign currency risk without restricted cash requirements. The Company may borrow under the promissory note until March 31, 2016 at which time the principal sum of each such loan, together with accrued and unpaid interest payable, will become due and payable. As of June 30, 2015, the Company had no balance outstanding under the promissory note. As part of the transaction, the Company granted the lender a security interest in its personal property, excluding intellectual property and other intangible assets. The promissory note also contains customary events of default .

Note 4 - Stockholders' Equity

Note 4 - Stockholders' Equity	6 Months Ended
	Jun. 30, 2015
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	NOTE 4:– STOCKHOLDERS’ EQUITY a. On December 30, 2005, the Company’s board of directors adopted the Varonis Systems, Inc. 2005 Stock Plan (the “2005 Stock Plan”). As of December 31, 2013, the Company had reserved 4,713,319 shares of common stock available for issuance to employees, directors, officers and consultants of the Company and its subsidiaries. The options generally vest over four years. No awards were granted under the 2005 Stock Plan subsequent to December 31, 2013, and no further awards will be granted under the 2005 Stock Plan. On November 14, 2013, the Company’s board of directors adopted the Varonis Systems, Inc. 2013 Omnibus Equity Incentive Plan (the “2013 Plan”). As of June 30, 2015, the Company had reserved 1,904,633 shares of common stock available for issuance under the 2013 Plan to employees, directors, officers and consultants of the Company and its subsidiaries. The number of shares of common stock available for issuance under the 2013 Plan will be increased on January 1, 2016 and on each January 1 thereafter by four percent (4%) of the number of shares of common stock issued and outstanding on each December 31 immediately prior to the date of increase (rounded down to the nearest whole share), but the amount of each increase will be limited to the number of shares of common stock necessary to bring the total number of shares of Common Stock available for grant and issuance under the 2013 Plan to five percent (5%) of the number of shares of common stock issued and outstanding on each December 31. Awards granted under the 2013 Plan generally vest over four years. Any award that is forfeited or canceled before expiration becomes available for future grants under the 2013 Plan. A summary of employees’ stock options activities during the period ended June 30, 2015 is as follows: Period ended Number Average Aggregate Average Options outstanding at the beginning of the year 4,080,611 $ 9.697 $ 95,855 6.092 Granted 191,200 $ 28.253 Exercised (202,771 ) $ 2.936 Forfeited (100,802 ) $ 26.269 Options outstanding at the end of the period 3,968,238 $ 10.515 $ 50,482 5.870 Vested and expected to vest 3,874,985 $ 10.200 $ 50,352 5.794 Options exercisable at the end of the period 2,649,977 $ 4.414 $ 47,928 4.364 The aggregate intrinsic value in the table above represents the total intrinsic value that would have been received by the option holders had all option holders exercised their options on the last date of the exercise period. Total intrinsic value of options exercised for the six months ended June 30, 2015 was $4,898. A summary of restricted stock units for employees, consultants and non-employee directors of the Company for the six months ended June 30, 2015 is as follows: Number of Weighted- Unvested balance - January 1, 2015 27,470 $ 21.00 Granted 474,865 $ 25.02 Vested (11,050 ) $ 20.14 Forfeited (9,840 ) $ 22.29 Unvested balance - June 30, 2015 481,445 $ 24.96 As of June 30, 2015, there was $16,088 and $10,337 of total unrecognized compensation cost related to non-vested stock options and non-vested restricted stock units, respectively. This cost is expected to be recognized over a period of approximately 2.872 and 3.490 years for stock options and restricted stock units, respectively. b. The options outstanding as of June 30, 2015 (unaudited) have been separated into ranges of exercise price as follows: Range of exercise price Options Weighted Weighted Options Weighted Weighted $0.070 - 0.901 467,436 2.422 $ 0.883 467,436 2.422 $ 0.883 $1.039 - 1.576 1,630,672 3.777 $ 1.263 1,630,672 3.777 $ 1.263 $6.230 - 8.800 149,818 6.415 $ 6.772 128,372 6.357 $ 6.777 $12.470 382,669 7.679 $ 12.470 209,815 7.657 $ 12.470 $19.510 30,000 9.871 $ 19.510 - - $ - $21.000 - 24.230 969,834 8.987 $ 21.609 154,477 8.635 $ 21.873 $29.880 154,200 9.652 $ 29.880 - - $ - $39.860 183,609 8.732 $ 39.860 59,205 8.732 $ 39.860 3,968,238 5.870 $ 10.515 2,649,977 4.364 $ 4.414 c. The fair value of stock option grants for the period ended June 30, 2015 was estimated using the following weighted average assumptions: Period ended unaudited Expected dividend yield 0 % Expected volatility 65 % Risk-free interest rate 2.00 % Expected term (years) 6.25 d. Options issued to consultants: The Company’s outstanding options granted to consultants for sales and pre-marketing services as of June 30, 2015 (unaudited) were as follows: Options for Exercise price Options Exercisable (number) (number) February 2013 3,500 $ 12.470 1,833 February 2023 August 2013 5,000 $ 21.140 2,292 August 2023 October 2013 1,084 $ 24.230 355 October 2023 March 2014 15,575 $ 39.860 5,141 March 2024 May 2014 8,700 $ 22.010 2,356 May 2024 August 2014 1,250 $ 21.000 - August 2024 November 2014 12,000 $ 21.660 - November 2024 May 2015 6,250 $ 19.510 - May 2025 53,359 11,977 e. Stock-based compensation expense for employees and consultants: The Company recognized non-cash stock-based compensation expense in the consolidated statements of operations as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (unaudited) (unaudited) (in thousands) (in thousands) Cost of revenues $ 111 $ 46 $ 202 $ 66 Research and development 544 272 1,011 471 Sales and marketing 702 519 1,439 859 General and administrative 605 141 995 228 Total $ 1,962 $ 978 $ 3,647 $ 1,624

Note 5 - Geographic Information

Note 5 - Geographic Information and Major Customer and Product Data	6 Months Ended
	Jun. 30, 2015
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 5:- GEOGRAPHIC INFORMATION AND MAJOR CUSTOMER AND PRODUCT DATA Summary information about geographic areas: ASC 280, “Segment Reporting,” establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. The Company manages its business on the basis of one reportable segment and derives revenues from licensing of software, sale of professional services, maintenance and technical support (see Note 1 for a brief description of the Company’s business). The following is a summary of revenues within geographic areas: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (unaudited) (unaudited) (in thousands) (in thousands) Revenues based on customer’s location: United States $ 18,072 $ 14,814 $ 31,178 $ 23,884 EMEA 9,240 7,605 17,233 14,548 Rest of World 1,838 2,197 3,725 3,639 Total revenues $ 29,150 $ 24,616 $ 52,136 $ 42,071 June 30, December 31, Unaudited Audited (in thousands) Long-lived assets by geographic region: United States $ 4,717 $ 2,146 Israel 1,521 1,648 Other 188 195 $ 6,426 $ 3,989

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Initial Public Offering, Policy [Policy Text Block]	b. Initial Public Offering: On March 5, 2014, the Company closed its initial public offering (“IPO”) whereby 5,300,436 shares of common stock were sold by the Company to the public (inclusive of 500,436 shares of common stock pursuant to the full exercise of an overallotment option granted to the underwriters). The aggregate net proceeds received by the Company from the offering were approximately $106,071, net of underwriting discounts and commissions and offering expenses payable by the Company. Upon the closing of the IPO, all shares of the Company’s outstanding convertible preferred stock automatically converted into 15,082,141 shares of common stock, and outstanding warrants to purchase convertible preferred stock automatically converted into warrants to purchase 122,572 shares of common stock. On March 13, 2014, all such warrants were exercised, in a net share settlement, resulting in the issuance of 107,217 shares of common stock.
Basis of Accounting, Policy [Policy Text Block]	c. Basis of Presentation: The accompanying unaudited consolidated interim financial statements have been prepared in accordance with Article 10 of Regulation S-X, “Interim Financial Statements” and the rules and regulations for Form 10-Q of the Securities and Exchange Commission (the “SEC”). Pursuant to those rules and regulations, the Company has condensed or omitted certain information and footnote disclosure it normally includes in its annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). In management’s opinion, the Company has made all adjustments (consisting only of normal, recurring adjustments, except as otherwise indicated) necessary to fairly present its consolidated financial position, results of operations and cash flows. The Company’s interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the 2014 consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for its fiscal year ended December 31, 2014 filed with the SEC on February 19, 2015 (the “2014 Form 10-K”). There have been no changes in the significant accounting policies from those that were disclosed in the audited consolidated financial statements for the fiscal year ended December 31, 2014 included in the 2014 Form 10-K.
Derivatives, Policy [Policy Text Block]	d. Derivative Instruments: The Company’s primary objective for holding derivative instruments is to reduce its exposure to foreign currency rate changes. The Company reduces its exposure by entering into forward foreign exchange contracts with respect to operating expenses that are forecast to be incurred in currencies other than the U.S. dollar. A majority of the Company’s revenues and a majority of its operating expenditures are transacted in U.S. dollars. However, certain operating expenditures are incurred in or exposed to other currencies, primarily the New Israeli Shekel (“NIS”). The Company has established forecasted transaction currency risk management programs to protect against fluctuations in fair value and the volatility of future cash flows caused by changes in exchange rates. The Company’s currency risk management program includes forward foreign exchange contracts designated as cash flow hedges. These forward foreign exchange contracts generally mature within 12 months. The Company does not enter into derivative financial instruments for trading purposes. Derivative instruments measured at fair value and their classification on the consolidated balance sheets are presented in the following table (in thousands): Assets as of Liabilities as of Notional Fair Notional Fair Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities $ 16,097 $ 610 $ 30,662 $ (326 ) For the three and six months ended June 30, 2015, the unaudited consolidated statements of operations reflect a loss of approximately $74 and $598, respectively, related to the effective portion of foreign currency forward contracts. For the three and six months ended June 30, 2014, the unaudited consolidated statements of operations reflect a gain of approximately $18 related to the effective portion of foreign currency forward contracts. There was no ineffective portion for the three and six months ended June 30, 2015 and 2014.
New Accounting Pronouncements, Policy [Policy Text Block]	e. Recently Issued Accounting Pronouncements: In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers”, an updated standard on revenue recognition. ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies reporting using IFRS and US GAAP. The core principle of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration (that is, payment) to which the company expects to be entitled in exchange for those goods or services. The new standard also will result in enhanced disclosures about revenue, provide guidance for transactions that were not previously addressed comprehensively (for example, service revenue and contract modifications) and improve guidance for multiple-element arrangements. ASU 2014-09 was initially effective for annual and interim reporting periods beginning after December 15, 2016 and may be adopted either on a full retrospective or modified retrospective approach. On July 9, 2015, the FASB approved a one year deferral of the effective date of the ASU. The revised effective date is for annual reporting periods beginning after December 15, 2017 and interim periods therein, with an early adoption permitted as of the original effective date. The Company is still evaluating the impact of implementation of this standard on its consolidated financial statements.

Note 1 - General (Tables)

Note 1 - General (Tables)	6 Months Ended
	Jun. 30, 2015
Notes Tables
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Assets as of Liabilities as of Notional Fair Notional Fair Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities $ 16,097 $ 610 $ 30,662 $ (326 )

Note 2 - Fair Value Measureme16

Note 2 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	As of June 30, 2015 (unaudited) As of December 31, 2014 Level I Level II Level III Fair Level I Level II Level III Fair Financial assets: Forward foreign exchange contracts — 610 — 610 — — — — Financial liabilities: Forward foreign exchange contracts — — — — — (326 ) — (326 ) Total financial assets (liabilities) $ — $ 610 $ — $ 610 $ — $ (326 ) $ — $ (326 )

Note 3 - Commitments and Cont17

Note 3 - Commitments and Contingent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2015
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	unaudited 2015 $ 1,604 2016 3,788 2017 3,803 2018 3,717 2019 3,772 Thereafter 17,419 $ 34,103

Note 4 - Stockholders' Equity (

Note 4 - Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Notes Tables
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Period ended Number Average Aggregate Average Options outstanding at the beginning of the year 4,080,611 $ 9.697 $ 95,855 6.092 Granted 191,200 $ 28.253 Exercised (202,771 ) $ 2.936 Forfeited (100,802 ) $ 26.269 Options outstanding at the end of the period 3,968,238 $ 10.515 $ 50,482 5.870 Vested and expected to vest 3,874,985 $ 10.200 $ 50,352 5.794 Options exercisable at the end of the period 2,649,977 $ 4.414 $ 47,928 4.364
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	Number of Weighted- Unvested balance - January 1, 2015 27,470 $ 21.00 Granted 474,865 $ 25.02 Vested (11,050 ) $ 20.14 Forfeited (9,840 ) $ 22.29 Unvested balance - June 30, 2015 481,445 $ 24.96
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Range of exercise price Options Weighted Weighted Options Weighted Weighted $0.070 - 0.901 467,436 2.422 $ 0.883 467,436 2.422 $ 0.883 $1.039 - 1.576 1,630,672 3.777 $ 1.263 1,630,672 3.777 $ 1.263 $6.230 - 8.800 149,818 6.415 $ 6.772 128,372 6.357 $ 6.777 $12.470 382,669 7.679 $ 12.470 209,815 7.657 $ 12.470 $19.510 30,000 9.871 $ 19.510 - - $ - $21.000 - 24.230 969,834 8.987 $ 21.609 154,477 8.635 $ 21.873 $29.880 154,200 9.652 $ 29.880 - - $ - $39.860 183,609 8.732 $ 39.860 59,205 8.732 $ 39.860 3,968,238 5.870 $ 10.515 2,649,977 4.364 $ 4.414
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Period ended unaudited Expected dividend yield 0 % Expected volatility 65 % Risk-free interest rate 2.00 % Expected term (years) 6.25
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Options for Exercise price Options Exercisable (number) (number) February 2013 3,500 $ 12.470 1,833 February 2023 August 2013 5,000 $ 21.140 2,292 August 2023 October 2013 1,084 $ 24.230 355 October 2023 March 2014 15,575 $ 39.860 5,141 March 2024 May 2014 8,700 $ 22.010 2,356 May 2024 August 2014 1,250 $ 21.000 - August 2024 November 2014 12,000 $ 21.660 - November 2024 May 2015 6,250 $ 19.510 - May 2025 53,359 11,977
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (unaudited) (unaudited) (in thousands) (in thousands) Cost of revenues $ 111 $ 46 $ 202 $ 66 Research and development 544 272 1,011 471 Sales and marketing 702 519 1,439 859 General and administrative 605 141 995 228 Total $ 1,962 $ 978 $ 3,647 $ 1,624

Note 5 - Geographic Informati19

Note 5 - Geographic Information and Major Customer and Product Data (Tables)	6 Months Ended
	Jun. 30, 2015
Notes Tables
Revenue from External Customers by Geographic Areas [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (unaudited) (unaudited) (in thousands) (in thousands) Revenues based on customer’s location: United States $ 18,072 $ 14,814 $ 31,178 $ 23,884 EMEA 9,240 7,605 17,233 14,548 Rest of World 1,838 2,197 3,725 3,639 Total revenues $ 29,150 $ 24,616 $ 52,136 $ 42,071
Long-lived Assets by Geographic Areas [Table Text Block]	June 30, December 31, Unaudited Audited (in thousands) Long-lived assets by geographic region: United States $ 4,717 $ 2,146 Israel 1,521 1,648 Other 188 195 $ 6,426 $ 3,989

Note 1 - General (Details Textu

Note 1 - General (Details Textual) $ in Thousands	Mar. 05, 2014USD ($)shares	Jun. 30, 2015USD ($)shares	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)shares	Jun. 30, 2014USD ($)	Dec. 31, 2014shares	Mar. 13, 2014shares
Foreign Exchange Forward [Member]
Derivative, Loss on Derivative | $		$ 74		$ 598
Derivative, Gain on Derivative | $			$ 18		$ 18
Foreign Exchange Contract [Member]
Derivative Instrument, Maturity Period	1 year
IPO [Member]
Common Stock, Shares, Issued	5,300,436
Entity Incorporation, Date of Incorporation				Nov. 3, 2004
Operations Commenced Date				Jan. 1, 2005
Subsidiary or Equity Method Investee, Number		5		5
Common Stock, Shares, Issued		24,908,121		24,908,121		24,685,604
Common Stock, Shares Issued upon Exercise by Underwriters	500,436
Proceeds from Issuance of Common Stock | $	$ 106,071
Conversion of Convertible Preferred Stock to Common Stock at Initial Public Offering, Shares	15,082,141
Conversion of Preferred Stock Warrants to Common Stock Warrants, Shares	122,572
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							107,217

Note 1 - General - Derivative I

Note 1 - General - Derivative Instruments Measured at Fair Value (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Cash Flow Hedging [Member]
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities	$ 16,097
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities	610
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities		$ 30,662
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities		$ (326)
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities	$ 610
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other liabilities		$ (326)

Note 2 - Fair Value Measureme22

Note 2 - Fair Value Measurements (Details Textual)	6 Months Ended
	Jun. 30, 2015USD ($)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net	$ 0

Note 2 - Fair Value Measureme23

Note 2 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Inputs, Level 1 [Member] | Foreign Exchange Forward [Member]
Forward foreign exchange contracts
Forward foreign exchange contracts
Fair Value, Inputs, Level 1 [Member]
Total financial assets (liabilities)
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Forward [Member]
Forward foreign exchange contracts	$ (610)
Forward foreign exchange contracts		$ (326)
Fair Value, Inputs, Level 2 [Member]
Total financial assets (liabilities)	$ (610)	$ 326
Fair Value, Inputs, Level 3 [Member] | Foreign Exchange Forward [Member]
Forward foreign exchange contracts
Forward foreign exchange contracts
Fair Value, Inputs, Level 3 [Member]
Total financial assets (liabilities)
Foreign Exchange Forward [Member]
Forward foreign exchange contracts	$ (610)
Forward foreign exchange contracts		$ (326)
Total financial assets (liabilities)	$ (610)	$ 326

Note 3 - Commitments and Cont24

Note 3 - Commitments and Contingent Liabilities (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2014
Promissory Note [Member]
Long-term Line of Credit	$ 0
Line of Credit Facility, Maximum Borrowing Capacity			$ 7,000,000
Debt Instrument, Basis Spread on Variable Rate	0.15%
Line of Credit Facility, Interest Rate at Period End	3.10%
Operating Leases, Rent Expense	$ 1,985,000	$ 2,986,000

Note 3 - Commitments and Cont25

Note 3 - Commitments and Contingent Liabilities - Aggregate Minimum Rental Commitments under Non-Cancelable Leases (Details) $ in Thousands	Jun. 30, 2015USD ($)
2,015	$ 1,604
2,016	3,788
2,017	3,803
2,018	3,717
2,019	3,772
Thereafter	17,419
	$ 34,103

Note 4 - Stockholders' Equity26

Note 4 - Stockholders' Equity (Details Textual) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2013
The 2005 Stock Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
The 2005 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0
Common Stock, Capital Shares Reserved for Future Issuance		4,713,319
The 2013 Omnibus Equity Award Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
The 2013 Omnibus Equity Award Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance	1,904,633
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Reserved for Grant	4.00%
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum	5.00%
Employee Stock Option [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 16,088
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 318 days
Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 10,337
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 178 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	191,200
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 4,898

Note 4 - Stockholder's Equity (

Note 4 - Stockholder's Equity (Deficiency) - Summary of Employees' Stock Options Activities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Options outstanding at the beginning of the year (in shares)	3,968,238	4,080,611
Options outstanding at the beginning of the year (in dollars per share)	$ 10.515	$ 9.697
Options outstanding at the beginning of the year	$ 50,482	$ 95,855
Options outstanding at the beginning of the year	5 years 317 days	6 years 33 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	191,200
Granted (in dollars per share)	$ 28.253
Exercised (in shares)	(202,771)
Exercised (in dollars per share)	$ 2.936
Forfeited (in shares)	(100,802)
Forfeited (in dollars per share)	$ 26.269
Vested and expected to vest (in shares)	3,874,985
Vested and expected to vest (in dollars per share)	$ 10.20
Vested and expected to vest	$ 50,352
Vested and expected to vest	5 years 289 days
Options exercisable at the end of the period (in shares)	2,649,977
Options exercisable at the end of the period (in dollars per share)	$ 4.414
Options exercisable at the end of the period	$ 47,928
Options exercisable at the end of the period	4 years 132 days

Note 4 - Stockholders' Equity -

Note 4 - Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details) - 6 months ended Jun. 30, 2015 - Restricted Stock Units (RSUs) [Member] - $ / shares	Total
Unvested balance - January 1, 2015 (in shares)	27,470
Unvested balance - January 1, 2015 (in dollars per share)	$ 21
Granted (in shares)	474,865
Granted (in dollars per share)	$ 25.02
Vested (in shares)	(11,050)
Vested (in dollars per share)	$ 20.14
Forfeited (in shares)	(9,840)
Forfeited (in dollars per share)	$ 22.29
Unvested balance - June 30, 2015 (in shares)	481,445
Unvested balance - June 30, 2015 (in dollars per share)	$ 24.96

Note 4 - Stockholder's Equity29

Note 4 - Stockholder's Equity (Deficiency) - Options Outstanding Separated into Range of Exercise Price (Details) - $ / shares	6 Months Ended
	Jun. 30, 2015
Range One [Member]
Range of exercise price, minimum (in dollars per share)	$ 0.07
Range of exercise price, maximum (in dollars per share)	$ 0.901
Options outstanding (in shares)	467,436
Outstanding weighted average remaining contractual life	2 years 154 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 0.883
Options exercisable (in shares)	467,436
Exercisable weighted average remaining contractual life	2 years 154 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 0.883
Range Two [Member]
Range of exercise price, minimum (in dollars per share)	1.039
Range of exercise price, maximum (in dollars per share)	$ 1.576
Options outstanding (in shares)	1,630,672
Outstanding weighted average remaining contractual life	3 years 283 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 1.263
Options exercisable (in shares)	1,630,672
Exercisable weighted average remaining contractual life	3 years 283 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 1.263
Range Three [Member]
Range of exercise price, minimum (in dollars per share)	6.23
Range of exercise price, maximum (in dollars per share)	$ 8.80
Options outstanding (in shares)	149,818
Outstanding weighted average remaining contractual life	6 years 151 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 6.772
Options exercisable (in shares)	128,372
Exercisable weighted average remaining contractual life	6 years 130 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 6.777
Range Four [Member]
Options outstanding (in shares)	382,669
Outstanding weighted average remaining contractual life	7 years 247 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 12.47
Options exercisable (in shares)	209,815
Exercisable weighted average remaining contractual life	7 years 239 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 12.47
Range Five [Member]
Options outstanding (in shares)	30,000
Outstanding weighted average remaining contractual life	9 years 317 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 19.51
Range Six [Member]
Range of exercise price, minimum (in dollars per share)	21
Range of exercise price, maximum (in dollars per share)	$ 24.23
Options outstanding (in shares)	969,834
Outstanding weighted average remaining contractual life	8 years 360 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 21.609
Options exercisable (in shares)	154,477
Exercisable weighted average remaining contractual life	8 years 231 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 21.873
Range Seven [Member]
Options outstanding (in shares)	154,200
Outstanding weighted average remaining contractual life	9 years 237 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 29.88
Range Eight [Member]
Options outstanding (in shares)	183,609
Outstanding weighted average remaining contractual life	8 years 267 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 39.86
Options exercisable (in shares)	59,205
Exercisable weighted average remaining contractual life	8 years 267 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 39.86
Options outstanding (in shares)	3,968,238
Outstanding weighted average remaining contractual life	5 years 317 days
Weighted average exercise price of options outstanding (in dollars per share)	$ 10.515
Options exercisable (in shares)	2,649,977
Exercisable weighted average remaining contractual life	4 years 132 days
Weighted average exercise price of options exercisable (in dollars per share)	$ 4.414

Note 4 - Stockholders' Equity30

Note 4 - Stockholders' Equity - Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option Grants (Details) - 6 months ended Jun. 30, 2015	Total
Expected dividend yield	0.00%
Expected volatility	65.00%
Risk-free interest rate	2.00%
Expected term (years)	6 years 91 days

Note 4 - Stockholders' Equity31

Note 4 - Stockholders' Equity - Outstanding Options Granted to Consultants for Sales and Pre-Marketing Services (Details) - Jun. 30, 2015 - $ / shares	Total
February 2013 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	3,500
Exercise price per share (in dollars per share)	$ 12.47
Options exercisable (in shares)	1,833
Exercisable through	February 2,023
August 2013 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	5,000
Exercise price per share (in dollars per share)	$ 21.14
Options exercisable (in shares)	2,292
Exercisable through	August 2,023
October 2013 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	1,084
Exercise price per share (in dollars per share)	$ 24.23
Options exercisable (in shares)	355
Exercisable through	October 2,023
March 2014 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	15,575
Exercise price per share (in dollars per share)	$ 39.86
Options exercisable (in shares)	5,141
Exercisable through	March 2,024
May 2014 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	8,700
Exercise price per share (in dollars per share)	$ 22.01
Options exercisable (in shares)	2,356
Exercisable through	May 2,024
August 2014 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	1,250
Exercise price per share (in dollars per share)	$ 21
Exercisable through	August 2,024
November 2014 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	12,000
Exercise price per share (in dollars per share)	$ 21.66
Exercisable through	November 2,024
May 2015 [Member] | Consultants [Member]
Options for shares of common stock (in shares)	6,250
Exercise price per share (in dollars per share)	$ 19.51
Exercisable through	May 2,025
Consultants [Member]
Options for shares of common stock (in shares)	53,359
Options exercisable (in shares)	11,977
Exercise price per share (in dollars per share)	$ 28.253
Options exercisable (in shares)	2,649,977

Note 4 - Stockholders' Equity32

Note 4 - Stockholders' Equity - Summary of Recognized Non-cash Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cost of Sales [Member]
Stock-based compensation expense	$ 111	$ 46	$ 202	$ 66
Research and Development Expense [Member]
Stock-based compensation expense	544	272	1,011	471
Selling and Marketing Expense [Member]
Stock-based compensation expense	702	519	1,439	859
General and Administrative Expense [Member]
Stock-based compensation expense	605	141	995	228
Stock-based compensation expense	$ 1,962	$ 978	$ 3,647	$ 1,624

Note 5 - Geographic Informati33

Note 5 - Geographic Information and Major Customer and Product Data (Details Textual)	6 Months Ended
	Jun. 30, 2015
Number of Reportable Segments	1

Note 5 - Geographic Informati34

Note 5 - Geographic Information and Major Customer and Product Data - Summary of Revenues within Geographical Areas (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
UNITED STATES
Revenues	$ 18,072	$ 14,814	$ 31,178	$ 23,884
EMEA [Member]
Revenues	9,240	7,605	17,233	14,548
Rest of the World [Member]
Revenues	1,838	2,197	3,725	3,639
Revenues	$ 29,150	$ 24,616	$ 52,136	$ 42,071

Note 5 - Geographic Informati35

Note 5 - Geographic Information and Major Customer and Product Data - Summary of Long-lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
UNITED STATES
Property and equipment, net	$ 4,717	$ 2,146
ISRAEL
Property and equipment, net	1,521	1,648
Rest of the World [Member]
Property and equipment, net	188	195
Property and equipment, net	$ 6,426	$ 3,989