XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Note 8 - Retirement Plan (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 36,980 | $ 27,511

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration