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Share-based Compensation Arrangement by Share-based Payment Award, Options, Fair Value of Shares Issued

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of shares issued under share-based payment arrangement.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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STOCK-BASED COMPENSATION: (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	Jul. 02, 2019	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2019
Share-based compensation
Exercised (in dollars per share)		$ 5.73
Stock Option Activity - Number of Shares
Outstanding at beginning of the period (in shares)		1,374,430
Options, grants in period (in shares)		162,481
Exercised (in shares)		(134,509)
Forfeited or cancelled (in shares)		(8,138)
Outstanding at end of the period (in shares)		1,394,264
Exercisable at the end of the period (in shares)		1,281,248
Weighted-average exercise price per share
Outstanding at the beginning of the period (in dollars per share)		$ 14.81
Grants in period (in dollars per share)		1.64
Exercised (in dollars per share)		5.73
Forfeited or cancelled (in dollars per share)		5.13
Outstanding at the end of the period (in dollars per share)		14.21
Exercisable at the end of the period (in dollars per share)		$ 15.31
Weighted-average remaining contractual term
Weighted average remaining contractual term		3 years 10 months 24 days
Exercisable at the end of the period		3 years 7 months 6 days
Aggregate intrinsic value
Exercised		$ 5,468
Outstanding at the end of the period		47,212
Exercisable at the end of the period		41,973
Data Plus Math Corporation
Share-based compensation
Total fair value of the replacement stock options issued		$ 7,400
Expected dividend yield		0.00%
Risk free interest rate, minimum		1.86%
Risk free interest rate, maximum		1.96%
Expected volatility rate		45.00%
Number of option fully vested (in shares)		48,619
Fair value of replacement stock options considered a component of purchase price	$ 2,300
Share-based payment arrangement, amount capitalized		$ 5,100
Data Plus Math Corporation \| Minimum
Share-based compensation
Expected term		7 years 3 months 29 days
Data Plus Math Corporation \| Maximum
Share-based compensation
Expected term		9 years 6 months 18 days
Stock options
Share-based compensation
Share-based compensation expense		$ 2,800	$ 2,600
Stock options \| Data Plus Math Corporation
Share-based compensation
Shares issued in period (in shares)		162,481
Exercised (in dollars per share)		$ 1.64
Weighted-average exercise price per share
Exercised (in dollars per share)		$ 1.64
Stock Option and Equity Compensation Plans
Share-based compensation
Total shares reserved for issuance since inception of the stock option and equity compensation plans (in shares)				42,300,000
Shares which remained available for future grants (in shares)		10,300,000