| Jun 30,
2012 | Jun 30,
2013 | Jun 30,
2014 | Jun 30,
2015 | Jun 30,
2016 | Jun 30,
2017 | Jun 30,
2018 | Jun 30,
2019 | Jun 30,
2020 | Jun 30,
2021 | Jun 30,
2022 | Jun 30,
2023 |
|---|
| Net loss | -8 | -11 | - | - | - | - | -40 | -17 | -46 | -51 | -54 | -32 |
|---|
| Change in fair value of warrant liability | - | - | - | - | - | - | -10 | 28 | -23 | 18 | 21 | 2 |
|---|
| Share-based compensation | 3 | 4 | 5 | 4 | 3 | 2 | 3 | 7 | 7 | 10 | 8 | 4 |
|---|
| Non-cash lease expense | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
|---|
| Issuance of warrants | - | - | - | - | - | - | - | - | - | - | - | 1 |
|---|
| Depreciation and amortization | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Non-cash lease expense | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
|---|
| Impairment of intangible assets | - | - | - | - | - | - | - | - | 0 | - | - | - |
|---|
| Depreciation and amortization | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Unbilled Receivables | - | - | - | - | - | - | - | - | - | - | 2 | -10 |
|---|
| Receivable for foreign tax withholding | - | - | - | - | - | - | - | - | -20 | 20 | - | - |
|---|
| Prepaid expenses and other current assets | 0 | 0 | 0 | 0 | 0 | 1 | -0 | 1 | 3 | 1 | 0 | 3 |
|---|
| Prepaid expenses and other current assets | 0 | 0 | 0 | 0 | 0 | 1 | -0 | 1 | 3 | 1 | 0 | 3 |
|---|
| Accounts payable | 1 | 1 | 1 | -1 | 0 | -0 | 3 | 1 | -2 | 4 | 2 | -2 |
|---|
| Accounts payable | 1 | 1 | 1 | -1 | 0 | -0 | 3 | 1 | -2 | 4 | 2 | -2 |
|---|
| Accrued liabilities | 1 | 1 | 2 | 1 | 0 | -1 | 0 | 1 | 1 | 2 | 2 | 2 |
|---|
| Accrued liabilities | 1 | 1 | 2 | 1 | 0 | -1 | 0 | 1 | 1 | 2 | 2 | 2 |
|---|
| Deferred revenue | - | - | - | - | - | - | - | 7 | 75 | 5 | 16 | -31 |
|---|
| Deferred revenue | - | - | - | - | - | - | - | 7 | 75 | 5 | 16 | -31 |
|---|
| Operating lease liability | - | - | - | - | - | - | - | - | - | 1 | -1 | -1 |
|---|
| Operating lease liability | - | - | - | - | - | - | - | - | - | 1 | -1 | -1 |
|---|
| Net cash used in operating activities | -7 | -10 | - | - | - | - | -21 | -29 | 34 | -32 | -49 | -52 |
|---|
| Purchases of property and equipment | 0 | 0 | 0 | 0 | 0 | 0 | - | 0 | 1 | 1 | 0 | 0 |
|---|
| Purchases of short-term investments | - | - | 35 | 70 | 55 | 60 | 114 | 65 | 190 | 420 | 273 | 102 |
|---|
| Proceeds from maturity of short-term investments | - | - | - | 60 | 65 | 50 | 70 | 89 | 85 | 446 | 280 | 155 |
|---|
| Net cash provided by investing activities | -0 | -0 | - | - | - | - | -44 | 24 | -106 | 25 | 7 | 54 |
|---|
| Proceeds from Issuance of Common Stock | 87 | 126 | 33 | 43 | - | 4 | - | - | - | - | 52 | - |
|---|
| Payment of issuance costs | - | - | - | - | - | - | - | - | - | - | 4 | - |
|---|
| Proceeds from Stock Options Exercised | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 1 | - |
|---|
| Payments of tax withholdings related to vesting of restricted stock units | - | - | - | - | - | - | - | 0 | - | - | 0 | 0 |
|---|
| Proceeds From Previously Issued Common Stock | - | - | - | - | - | - | - | - | 5 | - | - | - |
|---|
| Net cash (used in) provided by financing activities | 87 | 127 | - | - | - | - | 70 | 1 | 75 | 3 | 49 | -0 |
|---|
| Net cash (used in) provided by financing activities | 87 | 127 | - | - | - | - | 70 | 1 | 75 | 3 | 49 | -0 |
|---|
| Net increase in cash and cash equivalents | - | - | - | - | - | - | - | - | 3 | -4 | 7 | 1 |
|---|
| Income taxes paid | -0 | -0 | -0 | -0 | -0 | -0 | -0 | -0 | -0 | -0 | - | - |
|---|
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | - | - | - | 9 | 2 | 4 |
|---|
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | - | - | - | 9 | 2 | 4 |
|---|
| Warrants issued pursuant to cashless exercise | - | - | - | - | - | - | - | - | - | 0 | - | - |
|---|