XML 42 R26.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Share-based Compensation (Tables) | 3 Months Ended
--- | ---
Sep. 30, 2018
Share Based Compensation [Abstract] |
Shares Reserved for Issuance | The Company had reserved for issuance for the periods noted (in thousands):
|  | September 30, 2018 |  |  | June 30, 2018 |
2013 Equity Incentive Plan shares available for grant |  |  | 7,804 |  |  |  | 9,957 |
Employee stock options and awards outstanding |  |  | 12,236 |  |  |  | 12,060 |
2014 Employee Stock Purchase Plan |  |  | 4,084 |  |  |  | 5,365 |
Total shares reserved for issuance |  |  | 24,124 |  |  |  | 27,382 |
Schedule of Recognized Share-based Compensation Expense | Share-based compensation expense recognized in the condensed consolidated financial statements by line item caption is as follows (in thousands):
|  | Three Months Ended |
|  | September 30, 2018 |  |  | September 30, 2017 |
Cost of product revenue |  | $ | 178 |  |  | $ | 92 |
Cost of service revenue |  |  | 345 |  |  |  | 133 |
Research and development |  |  | 2,342 |  |  |  | 1,051 |
Sales and marketing |  |  | 2,359 |  |  |  | 1,643 |
General and administrative |  |  | 1,601 |  |  |  | 1,884 |
Total share-based compensation expense |  | $ | 6,825 |  |  | $ | 4,803 |
Summary of Stock Award Activity | The following table summarizes stock award activity for the three months ended September 30, 2018 (in thousands, except grant date fair value):
|  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value |  |  | Aggregate Fair Market Value |
Non-vested stock awards outstanding at June 30, 2018 |  |  | 7,764 |  |  | $ | 8.60 |  |  | $ | 61,804 |
Granted |  |  | 3,337 |  |  |  | 6.44 |  |  |  |  |
Vested |  |  | (1,142 | ) |  |  | 6.28 |  |  |  |  |
Cancelled |  |  | (565 | ) |  |  | 8.69 |  |  |  |  |
Non-vested stock awards outstanding at September 30, 2018 |  |  | 9,394 |  |  | $ | 8.11 |  |  | $ | 51,479 |
Summary of Stock Option Activity | The following table summarizes stock option activity for the three months ended September 30, 2018 (in thousands, except per share and contractual term):
|  | Number of Shares |  |  | Weighted-Average Exercise Price Per Share |  |  | Weighted-Average Remaining Contractual Term (years) |  |  | Aggregate Intrinsic Value |
Options outstanding at June 30, 2018 |  |  | 2,193 |  |  | $ | 3.88 |  |  |  | 2.90 |  |  | $ | 8,996 |
Granted |  |  | 852 |  |  |  | 6.40 |  |  |  |  |  |  |  |  |
Exercised |  |  | (123 | ) |  |  | 3.81 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (80 | ) |  |  | 6.18 |  |  |  |  |  |  |  |  |
Options outstanding at September 30, 2018 |  |  | 2,842 |  |  | $ | 4.57 |  |  |  | 3.88 |  |  | $ | 3,343 |
Vested and expected to vest at September 30, 2018 |  |  | 2,842 |  |  | $ | 4.57 |  |  |  | 3.88 |  |  | $ | 3,343 |
Exercisable at September 30, 2018 |  |  | 1,939 |  |  | $ | 3.98 |  |  |  | 2.68 |  |  | $ | 2,946 |
Schedule of Fair Value Assumptions for Stock Options and Employee Stock Purchase Plan Awards | The following assumptions were used to calculate the fair value of shares granted under the ESPP during the following periods:
|  | Employee Stock Purchase Plan |
|  | Three Months Ended |
|  | September 30, 2018 |  |  | September 30, 2017 |
Expected life |  | 0.5 years |  |  | 0.5 years |
Risk-free interest rate |  |  | 2.20 | % |  |  | 1.15 | %
Volatility |  |  | 63 | % |  |  | 42 | %
Dividend yield |  |  | — | % |  |  | — | %

X
- Definition Shares reserved for issuance. + References No definition available. + Details
Name: | extr_SharesReservedForIssuanceTableTextBlock
Namespace Prefix: | extr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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