v3.26.1
Note 15 - Reportable Operating Segments - Reportable Segment Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Revenues [1] $ 3,698,000 $ 4,602,000 $ 7,097,000 $ 10,406,000  
Operating costs and expenses (2,557,000) (3,189,000) (5,504,000) (7,521,000)  
Depreciation expense (257,000) (355,000) (490,000) (541,000)  
General and administrative expenses (2,680,000) (1,769,000) (4,914,000) (4,835,000)  
Operating income (loss) (1,796,000) (711,000) (3,811,000) (2,491,000)  
Pension and other post-retirement expenses (20,000) (582,000) (41,000) (7,501,000)  
Interest expense (101,000) (55,000) (163,000) (103,000)  
Other income, net 289,000 349,000 327,000 455,000  
Loss from continuing operations (1,628) (999,000) (3,688) (9,639,000)  
Capital expenditures (2) [2] 2,213,000 1,531,000 3,439,000 2,104,000  
Assets 49,625,000 [3] 45,739,000 [3] 49,625,000 [3] 45,739,000 [3] $ 47,968,000
Loss on asset disposal, net     0 1,000  
Operating Segments [Member] | Land Leasing and Management [Member]          
Revenues [1] 1,502,000 1,294,000 2,689,000 2,529,000  
Operating costs and expenses (1,324,000) (1,059,000) (3,108,000) (1,741,000)  
Depreciation expense (35,000) (141,000) (68,000) (162,000)  
General and administrative expenses (253,000) (154,000) (447,000) (377,000)  
Operating income (loss) (110,000) (60,000) (934,000) 249,000  
Capital expenditures (2) [2] 767,000 582,000 933,000 868,000  
Assets [3] 16,203,000 [4] 14,729,000 16,203,000 [4] 14,729,000  
Operating Segments [Member] | Agribusiness Venture [Member]          
Revenues 0 0 0 0  
Operating costs and expenses (39,000) (35,000) (93,000) (35,000)  
Depreciation expense (7,000) 0 (14,000) 0  
General and administrative expenses (84,000) (51,000) (149,000) (126,000)  
Operating income (loss) (130,000) (86,000) (256,000) (161,000)  
Capital expenditures (2) 536,000 390,000 805,000 392,000  
Assets 2,631,000 685,000 2,631,000 685,000  
Operating Segments [Member] | Land Development and Sales [Member]          
Revenues [1] 235,000 1,438,000 492,000 4,056,000  
Operating costs and expenses (287,000) (1,181,000) (624,000) (4,119,000)  
Depreciation expense (1,000) 0 (3,000) 0  
General and administrative expenses (253,000) (154,000) (447,000) (377,000)  
Operating income (loss) (306,000) 103,000 (582,000) (440,000)  
Capital expenditures (2) [2] 910,000 447,000 1,661,000 577,000  
Assets [3] 15,512,000 11,364,000 15,512,000 11,364,000  
Operating Segments [Member] | Commercial Real Estate Leasing [Member]          
Revenues [1] 1,961,000 1,870,000 3,916,000 3,821,000  
Operating costs and expenses (907,000) (914,000) (1,679,000) (1,626,000)  
Depreciation expense (160,000) (190,000) (315,000) (327,000)  
General and administrative expenses (84,000) (51,000) (149,000) (126,000)  
Operating income (loss) 810,000 715,000 1,773,000 1,742,000  
Capital expenditures (2) [2] 0 112,000 40,000 267,000  
Assets [3] 9,215,000 10,470,000 9,215,000 10,470,000  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]          
Revenues [1] 0 0 0 0  
Operating costs and expenses 0 0 0 0  
Depreciation expense (54,000) (24,000) (90,000) (52,000)  
General and administrative expenses (2,006,000) (1,359,000) (3,722,000) (3,829,000)  
Operating income (loss) (2,060,000) (1,383,000) (3,812,000) (3,881,000)  
Capital expenditures (2) [2] 0 0 0 0  
Assets [3] $ 6,064,000 $ 8,491,000 $ 6,064,000 $ 8,491,000  
[1] Amounts are principally revenues from external customers and exclude equity in earning of affiliates. The Company does not have a single external customer that amounts to 10% or more of the Company’s revenues.
[2] Includes expenditures for property and deferred costs
[3] Segment assets are located in the United States.
[4] The Land Development and Sales segment includes a $42,000 equity method investment as of March 31, 2025.