Note 5 - Amounts Receivable
|3 Months Ended|
Mar. 31, 2023
|Notes to Financial Statements|
|Loans, Notes, Trade and Other Receivables Disclosure [Text Block]||
Amounts receivable consisted primarily of accrued interest receivable on marketable securities of $55,000 and $80,000 as of March 31, 2023 and December 31, 2022, respectively.
The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef