CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Preferred Stock	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Balance at beginning of year at Dec. 31, 2020	$ 0	$ 7,000	$ 57,966,000	$ 37,000	$ (49,170,000)	$ 8,840,000
Balance at beginning of year (in shares) at Dec. 31, 2020	0	6,601
Net income (loss)	$ 0	$ 0	0	0	(734,000)	(734,000)
Issuance of stock (in shares)	200	0
Issuance of stock	$ 2,000	$ 0	4,566,000	0	0	4,568,000
Preferred stock dividends	0	0	0	0	(48,000)	(48,000)
Foreign currency translation adjustment	0	0	0	59,000	0	59,000
Stock-based compensation expense	$ 0	$ 0	20,000	0	0	20,000
Stock-based compensation expense (in shares)	0	1
Balance at end of year at Dec. 31, 2021	$ 2,000	$ 7,000	62,552,000	96,000	(49,952,000)	$ 12,705,000
Balance at end of year (in shares) at Dec. 31, 2021	200	6,602				6,602,000
Net income (loss)	$ 0	$ 0	0	0	1,672,000	$ 1,672,000
Issuance of stock (in shares)	0	6
Issuance of stock	$ 0	$ 0	50,000	0	0	50,000
Preferred stock dividends	0	0	0	0	(400,000)	(400,000)
Foreign currency translation adjustment	0	0	0	(194,000)	0	(194,000)
Stock-based compensation expense	0	2	15,000	0	0	15,000
Balance at end of year at Dec. 31, 2022	$ 2,000	$ 7,000	$ 62,617,000	$ (98,000)	$ (48,680,000)	$ 13,848,000
Balance at end of year (in shares) at Dec. 31, 2022	200	6,610				6,610,000