Supplemental Cash Flow Information and Material Non-Cash Transactions	12 Months Ended
Dec. 31, 2021
Supplemental Cash Flow Information and Material Non-Cash Transactions
Supplemental Cash Flow Information and Material Non-Cash Transactions	9. Supplemental Cash Flow Information and Material Non-Cash Transactions As of December 31, 2021 and 2020, all of our cash was held in liquid bank deposits and/or government instruments in the United States or Australia. There were no significant non-cash transactions for the years ended December 31, 2021 and 2020.

The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-URI http://asc.fasb.org/topic&trid=2134446

Name:	us-gaap_CashFlowSupplementalDisclosuresTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration