Fair Value of Financial Assets and Liabilities (Tables)
|
3 Months Ended |
Jul. 31, 2017 |
|---|
| Fair Value Disclosures [Abstract] |
|
| Summary of Cash and Cash Equivalents |
The following table summarizes the Company’s cash and cash equivalents as of July 31, 2017 and April 30, 2017 (in thousands): | | | | | | | | | | July 31,
2017 | | April 30,
2017 | Demand deposit accounts | $ | 39,509 |
| | $ | 46,164 |
| Money market funds | 3,660 |
| | 3,532 |
| Commercial paper | 3,847 |
| | 2,798 |
| Total cash and cash equivalents | $ | 47,016 |
| | $ | 52,494 |
|
|
| Summary of Short-Term Investments |
The following table summarizes the Company’s short-term investments as of July 31, 2017 (in thousands): | | | | | | | | | | | | | | | | | | Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | Available-for-sale securities: | | | | | | | | Certificates of deposit | $ | 2,650 |
| | $ | — |
| | $ | — |
| | $ | 2,650 |
| Commercial paper | 5,556 |
| | — |
| | — |
| | 5,556 |
| U.S. government agency debt securities | 22,088 |
| | — |
| | (38 | ) | | 22,050 |
| Corporate debt securities | 7,272 |
| | — |
| | (6 | ) | | 7,266 |
| Total short-term investments | $ | 37,566 |
| | $ | — |
| | $ | (44 | ) | | $ | 37,522 |
|
The following table summarizes the Company’s short-term investments as of April 30, 2017 (in thousands): | | | | | | | | | | | | | | | | | | Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | Available-for-sale securities: | | | | | | | | Certificates of deposit | $ | 1,930 |
| | $ | — |
| | $ | — |
| | $ | 1,930 |
| Commercial paper | 4,206 |
| | — |
| | — |
| | 4,206 |
| U.S. Treasury securities | 8,705 |
| | — |
| | (5 | ) | | 8,700 |
| U.S. government agency debt securities | 16,733 |
| | — |
| | (15 | ) | | 16,718 |
| Corporate debt securities | 7,144 |
| | — |
| | (9 | ) | | 7,135 |
| Total short-term investments | $ | 38,718 |
| | $ | — |
| | $ | (29 | ) | | $ | 38,689 |
|
|
| Contractual Maturities of Available-for-Sale Debt Securities |
Contractual maturities of available-for-sale securities at July 31, 2017, were as follows (in thousands): | | | | | Estimated Fair Value | Due in one year or less | 36,567 |
| Due in 1-2 years | 955 |
| Total investments in debt securities | 37,522 |
|
|
| Summary of Fair Value of Financial Assets and Liabilities |
The following table summarizes the fair value of the Company’s financial assets and liabilities that were measured on a recurring basis as of July 31, 2017 and April 30, 2017 (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements at July 31, 2017 | | Fair Value Measurements at April 30, 2017 | | Level 1 | | Level 2 | | Level 3 | | Total | | Level 1 | | Level 2 | | Level 3 | | Total | Assets: | | | | | | | | | | | | | | | | Cash equivalents: | | | | | | | | | | | | | | | | Money market funds | $ | 3,660 |
| | $ | — |
| | $ | — |
| | $ | 3,660 |
| | $ | 3,532 |
| | $ | — |
| | $ | — |
| | $ | 3,532 |
| Commercial paper | — |
| | 3,847 |
| | — |
| | 3,847 |
| | — |
| | 2,798 |
| | — |
| | 2,798 |
| Total cash equivalents | 3,660 |
| | 3,847 |
| | — |
| | 7,507 |
| | 3,532 |
| | 2,798 |
| | — |
| | 6,330 |
| Short-term investments: | | | | | | | | | | | | | | | | Certificates of deposit | — |
| | 2,650 |
| | — |
| | 2,650 |
| | — |
| | 1,930 |
| | — |
| | 1,930 |
| Commercial paper | — |
| | 5,556 |
| | — |
| | 5,556 |
| | — |
| | 4,206 |
| | — |
| | 4,206 |
| U.S. Treasury securities | — |
| | — |
| | — |
| | — |
| | 8,700 |
| | — |
| | — |
| | 8,700 |
| U.S. government agency securities | 22,050 |
| | — |
| | — |
| | 22,050 |
| | 16,718 |
| | — |
| | — |
| | 16,718 |
| Corporate securities | — |
| | 7,266 |
| | — |
| | 7,266 |
| | — |
| | 7,135 |
| | — |
| | 7,135 |
| Total short-term investments | 22,050 |
| | 15,472 |
| | — |
| | 37,522 |
| | 25,418 |
| | 13,271 |
| | — |
| | 38,689 |
| Total assets | $ | 25,710 |
| | $ | 19,319 |
| | $ | — |
| | $ | 45,029 |
| | $ | 28,950 |
| | $ | 16,069 |
| | $ | — |
| | $ | 45,019 |
|
|