Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($)	Restricted Stock [Member] Common Stock [Member]	Restricted Stock [Member] Additional Paid-in Capital [Member]	Restricted Stock [Member] Retained Earnings [Member]	Restricted Stock [Member] Parent [Member]	Restricted Stock [Member] Noncontrolling Interest [Member]	Restricted Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balances (in shares) at Dec. 31, 2021							6,049,000
Balances at Dec. 31, 2021							$ 10,758,000	$ 7,444,000	$ 1,691,000	$ 19,893,000	$ 4,346,000	$ 24,239,000
Stock-based compensation expense (in shares)							0
Stock-based compensation expense							$ 0	87,000	0	87,000	0	87,000
Issuance of restricted stock awards (in shares)	30,000
Issuance of restricted stock awards	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Net income							$ 0	0	269,000	269,000	125,000	394,000
Balances (in shares) at Mar. 31, 2022							6,079,000
Balances at Mar. 31, 2022							$ 10,758,000	7,531,000	1,960,000	20,249,000	4,471,000	$ 24,720,000
Balances (in shares) at Dec. 31, 2022							6,184,000					6,184,000
Balances at Dec. 31, 2022							$ 10,763,000	7,843,000	3,019,000	21,625,000	4,000,000	$ 25,625,000
Stock-based compensation expense (in shares)							0
Stock-based compensation expense							$ 0	96,000	0	96,000	0	96,000
Net income							$ 0	0	188,000	188,000	(88,000)	$ 100,000
Balances (in shares) at Mar. 31, 2023							6,184,000					6,184,000
Balances at Mar. 31, 2023							$ 10,763,000	$ 7,939,000	$ 3,207,000	$ 21,909,000	$ 3,912,000	$ 25,821,000