XML 70 R57.htm IDEA: XBRL DOCUMENT v3.22.0.1
Note 9 - Property and Equipment (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Depreciation, Total $ 141,000 $ 129,000
Other Miscellaneous Income [Member]    
Rental Income, Nonoperating $ 109,000 $ 95,000