CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
CONSOLIDATED BALANCE SHEETS
Allowance for credit losses of trade accounts receivable	$ 22	$ 72
Preferred Stock, Authorized Shares	5,000,000	5,000,000
Common Stock, Authorized Shares	30,000,000	30,000,000
Common Stock, Issued Shares	9,236,040	9,020,819
Common Stock, Outstanding Shares	9,236,040	9,020,819
Series A Junior Participating
CONSOLIDATED BALANCE SHEETS
Preferred Stock, Authorized Shares	200,000	200,000