CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (unaudited) - USD ($)	Class A Common Stock Common Stock	Additional paid-in capital	Retained earnings	Treasury stock	Accumulated other comprehensive loss	Total
Beginning balance at Dec. 31, 2021	$ 4,453,000	$ 14,167,000	$ 36,046,000	$ (10,213,000)	$ (613,000)	$ 43,840,000
Beginning balance (in shares) at Dec. 31, 2021	4,453,000
Treasury stock (in shares) at Dec. 31, 2021				(1,273,000)
Increase (Decrease) in Stockholders' Equity
Net loss			(876,000)			(876,000)
Restricted common stock compensation	$ 7,000	29,000				36,000
Restricted common stock compensation (in shares)	7,000
Exercise of stock options	$ 7,000	33,000				40,000
Exercise of stock options (in shares)	7,000
Stock - based compensation		1,000				1,000
Dividends			(160,000)			(160,000)
Foreign currency translation adjustment					(356,000)	(356,000)
Treasury stock (in shares) at Sep. 30, 2022				(1,273,000)
Ending balance at Sep. 30, 2022	$ 4,467,000	14,230,000	35,010,000	$ (10,213,000)	(969,000)	42,525,000
Ending balance (in shares) at Sep. 30, 2022	4,467,000
Beginning balance at Jun. 30, 2022	$ 4,467,000	14,214,000	35,407,000	$ (10,213,000)	(809,000)	43,066,000
Beginning balance (in shares) at Jun. 30, 2022	4,467,000
Treasury stock (in shares) at Jun. 30, 2022				(1,273,000)
Increase (Decrease) in Stockholders' Equity
Net loss			(237,000)			(237,000)
Restricted common stock compensation		16,000				16,000
Dividends			(160,000)			(160,000)
Foreign currency translation adjustment					(160,000)	(160,000)
Treasury stock (in shares) at Sep. 30, 2022				(1,273,000)
Ending balance at Sep. 30, 2022	$ 4,467,000	14,230,000	35,010,000	$ (10,213,000)	(969,000)	42,525,000
Ending balance (in shares) at Sep. 30, 2022	4,467,000
Beginning balance at Dec. 31, 2022	$ 4,467,000	14,246,000	34,251,000	$ (10,213,000)	(795,000)	$ 41,956,000
Beginning balance (in shares) at Dec. 31, 2022	4,467,000
Treasury stock (in shares) at Dec. 31, 2022				(1,273,000)		1,273,000
Increase (Decrease) in Stockholders' Equity
Net loss			(146,000)			$ (146,000)
Restricted common stock compensation		14,000				14,000
Stock - based compensation		24,000				24,000
Dividends			(480,000)			(480,000)
Foreign currency translation adjustment					(28,000)	$ (28,000)
Treasury stock (in shares) at Sep. 30, 2023				(1,273,000)		1,273,000
Ending balance at Sep. 30, 2023	$ 4,467,000	14,284,000	33,625,000	$ (10,213,000)	(823,000)	$ 41,340,000
Ending balance (in shares) at Sep. 30, 2023	4,467,000
Beginning balance at Jun. 30, 2023	$ 4,467,000	14,276,000	34,505,000	$ (10,213,000)	(726,000)	42,309,000
Beginning balance (in shares) at Jun. 30, 2023	4,467,000
Treasury stock (in shares) at Jun. 30, 2023				(1,273,000)
Increase (Decrease) in Stockholders' Equity
Net loss			(721,000)			(721,000)
Restricted common stock compensation		8,000				8,000
Dividends			(159,000)			(159,000)
Foreign currency translation adjustment					(97,000)	$ (97,000)
Treasury stock (in shares) at Sep. 30, 2023				(1,273,000)		1,273,000
Ending balance at Sep. 30, 2023	$ 4,467,000	$ 14,284,000	$ 33,625,000	$ (10,213,000)	$ (823,000)	$ 41,340,000
Ending balance (in shares) at Sep. 30, 2023	4,467,000