Note 1 - General (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	Three Month Ended March 31, 2017
	As Reported			Adjustments			As Adjusted
License revenues	$	19,155		$	(1,063	)	$	18,092
Maintenance and service revenues		21,225			276			21,501
Total revenues		40,380			(787	)		39,593
Cost of revenues		4,672			21			4,693
Gross profit		35,708			(808	)		34,900
Operating costs and expenses:
Research and development		10,409			-			10,409
Sales and marketing		30,811			103			30,914
General and administrative		5,513			(4	)		5,509
Total operating expenses		46,733			99			46,832
Operating loss		(11,025	)		(907	)		(11,932	)
Financial income, net		469			-			469
Loss before income taxes		(10,556	)		(907	)		(11,463	)
Income taxes		(323	)		123			(200	)
Net loss	$	(10,879	)	$	(784	)	$	(11,663	)

	December 31, 2017 Balance Sheet Data
	As Reported			Adjustments			As Adjusted
Assets
Current assets:
Prepaid expenses and other current assets	$	7,130		$	7,216		$	14,346
Long-term assets:
Other assets	$	973		$	6,270		$	7,243
Liabilities and stockholders’ equity
Current liabilities:
Deferred revenues	$	73,891		$	(398	)	$	73,493
Long-term liabilities:
Deferred revenues	$	7,034		$	(426	)	$	6,608
Other liabilities	$	6,561		$	1,246		$	7,807
Stockholders’ equity:
Accumulated deficit	$	(122,454	)	$	13,064		$	(109,390	)

	Statement of Cash Flows Three Month Ended March 31, 2017
	As Reported			Adjustments			As Adjusted
Cash flows from operating activities
Net loss	$	(10,879	)	$	(784	)	$	(11,663	)
Amortization of deferred commissions	$	-		$	3,027		$	3,027
Deferred commissions	$	-		$	(2,906	)	$	(2,906	)
Deferred revenues	$	(3,203	)	$	786		$	(2,417	)
Other long term liabilities	$	(418	)	$	(123	)	$	(541	)
Net cash provided by operating activities	$	8,297		$	-		$	8,297

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

	Liabilities as of March 31, 2018 (unaudited)					Assets as of December 31, 2017
	Notional Amount		Fair Value			Notional Amount		Fair Value
Foreign exchange forward contract derivatives in cash flow hedging relationships - included in other current assets and accrued expenses and other short term liabilities	$	44,348	$	(2,029	)	$	1,746	$	163

Cash, Cash Equivalents and Investments [Table Text Block]

	As of March 31, 2018 (unaudited)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized   Loss			Fair Value
Cash and cash equivalents
Cash	$	61,749	$	-	$	-		$	61,749
Money market funds		9,029		-		-			9,029
Total	$	70,778	$	-	$	-		$	70,778
Short-term investments
US Treasury securities	$	37,751	$	-	$	(34	)	$	37,717
Term bank deposits		45,175		-		-			45,175
Total	$	82,926	$	-	$	(34	)	$	82,892

	As of December 31, 2017
	Amortized Cost		Gross Unrealized Gains			Gross Unrealized   Loss			Fair Value
Cash and cash equivalents
Cash	$	49,819	$	-		$	-		$	49,819
Money market funds		6,870		-			-			6,870
Total	$	56,689	$	-		$	-		$	56,689
Short-term investments
US Treasury securities	$	39,758		*	)		(27	)	$	39,731
Term bank deposits		40,137		-			-			40,137
Total	$	79,895	$	*	)	$	(27	)	$	79,868

Schedule of Cash and Cash Equivalents [Table Text Block]

	March 31, 2018		March 31, 2017
Cash and cash equivalents	$	70,778	$	51,070
Long term restricted cash included in other assets		546		517
Cash, cash equivalents and long term restricted cash shown in the consolidated statement of cash flows	$	71,324	$	51,587