Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Restricted Stock [Member] Common Stock [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, 2022			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				96,000		96,000		96,000
Net income					188,000	188,000	(88,000)	100,000
Balances (in shares) at Mar. 31, 2023			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
Balances (in shares) at Dec. 31, 2022			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
Net income								88,000
Non-controlling interest RI Acquisition								0
RI Acquisition non-controlling interests								0
Balances (in shares) at Sep. 30, 2023			6,270,000
Balances at Sep. 30, 2023			$ 10,763,000	8,134,000	3,214,000	22,111,000	3,893,000	26,004,000
Balances (in shares) at Mar. 31, 2023			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
Stock-based compensation expense				97,000		97,000		97,000
Net income			$ 0	0	(111,000)	(111,000)	(66,000)	(177,000)
Vested restricted stock awards (in shares)	30,000
Vested restricted stock awards		$ 0
Balances (in shares) at Jun. 30, 2023			6,214,000
Balances at Jun. 30, 2023			$ 10,763,000	8,036,000	3,096,000	21,895,000	3,846,000	25,741,000
Stock-based compensation expense				98,000		98,000		98,000
Net income					118,000	118,000	47,000	165,000
Vested restricted stock awards (in shares)			56,000
Vested restricted stock awards			$ 0	0	0	0	0	0
Balances (in shares) at Sep. 30, 2023			6,270,000
Balances at Sep. 30, 2023			$ 10,763,000	8,134,000	3,214,000	22,111,000	3,893,000	$ 26,004,000
Balances (in shares) at Dec. 31, 2023			6,300,000					6,300,000
Balances at Dec. 31, 2023			$ 10,763,000	8,232,000	3,629,000	22,624,000	3,655,000	$ 26,279,000
Stock-based compensation expense				98,000		98,000		98,000
Net income			$ 0	0	119,000	119,000	(54,000)	65,000
Vested restricted stock awards (in shares)			30,000
Vested restricted stock awards			$ 0	0	0	0	0	0
Capital contribution non-controlling interests			$ 0	0	0	0	38,000	38,000
Cash distributions to non-controlling interests							(95,000)	(95,000)
Balances (in shares) at Mar. 31, 2024			6,330,000
Balances at Mar. 31, 2024			$ 10,763,000	8,330,000	3,748,000	22,841,000	3,544,000	$ 26,385,000
Balances (in shares) at Dec. 31, 2023			6,300,000					6,300,000
Balances at Dec. 31, 2023			$ 10,763,000	8,232,000	3,629,000	22,624,000	3,655,000	$ 26,279,000
Net income								3,423,000
Non-controlling interest RI Acquisition								1,900,000
RI Acquisition non-controlling interests								$ (1,900,000)
Balances (in shares) at Sep. 30, 2024			6,390,000					6,390,000
Balances at Sep. 30, 2024			$ 10,763,000	8,517,000	7,143,000	26,423,000	5,407,000	$ 31,830,000
Balances (in shares) at Mar. 31, 2024			6,330,000
Balances at Mar. 31, 2024			$ 10,763,000	8,330,000	3,748,000	22,841,000	3,544,000	26,385,000
Stock-based compensation expense				99,000		99,000		99,000
Net income					3,602,000	3,602,000	166,000	3,768,000
Vested restricted stock awards (in shares)			30,000
Vested restricted stock awards			$ 0	0	0	0	0	0
Non-controlling interest RI Acquisition			0	0	0	0	2,100,000	2,100,000
RI Acquisition non-controlling interests			$ 0	0	0	0	(2,100,000)	(2,100,000)
Balances (in shares) at Jun. 30, 2024			6,360,000
Balances at Jun. 30, 2024			$ 10,763,000	8,429,000	7,350,000	26,542,000	5,810,000	32,352,000
Stock-based compensation expense				88,000		88,000		88,000
Net income					(207,000)	(207,000)	(203,000)	(410,000)
Vested restricted stock awards (in shares)			30,000
Vested restricted stock awards			$ 0	0	0	0	0	0
Non-controlling interest RI Acquisition			0	0	0	0	200,000	200,000
RI Acquisition non-controlling interests			$ 0	0	0	0	(200,000)	$ (200,000)
Balances (in shares) at Sep. 30, 2024			6,390,000					6,390,000
Balances at Sep. 30, 2024			$ 10,763,000	$ 8,517,000	$ 7,143,000	$ 26,423,000	$ 5,407,000	$ 31,830,000