CONSOLIDATED BALANCE SHEETS) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets:
Trade Accounts Receivable, Net Of Allowance	$ 73	$ 89
Preferred Stock, Authorized Shares	5,000,000	5,000,000
Common Stock, Authorized Shares	30,000,000	30,000,000
Common Stock, Issued Shares	8,622,369	8,621,007
Common Stock, Outstanding Shares	8,622,369	8,621,007
Series A Junior Participating
Current Assets:
Preferred Stock, Authorized Shares	5,000,000	200,000