XML 10 R29.htm IDEA: XBRL DOCUMENT v3.20.1
Note 4 - Income Taxes - Deferred Tax Assets (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Intangible assets $ (4,747) $ (9,497)
Accrued warranty expense 39,837
Accrued payroll 10,875 37,872
Share-based compensation (655)  
Share-based compensation   6,713
Net operating loss carryforwards 32,138 8,909
Other, net 4,562 5,069
Property and equipment (32,584) (45,371)
Valuation allowance (8,907) (8,909)
$ 682 $ 34,623