CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Trade Accounts Receivable, Net Of Allowance	$ 142	$ 147
Preferred Stock, Authorized Shares	5,000,000	5,000,000
Common Stock, Authorized Shares	30,000,000	30,000,000
Common Stock, Issued Shares	8,818,076	8,816,381
Common Stock, Outstanding Shares	8,818,076	8,816,381
Series A Junior Participating
Preferred Stock, Authorized Shares	200,000	200,000