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FORM 10-K
EXHIBIT 23.1
EXHIBIT 31.1
EXHIBIT 31.2
EXHIBIT 32.1
Note 8 - Accounts Payable and Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]
December 31,
2021
2020
Patent and legal costs
$
28
$
65
Accrued compensation
628
563
Warranty costs
96
48
Taxes and other
72
45
$
824
$
721