Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 5,700	$ 8,499
Cash, restricted	0	10
Accounts receivable, net	1,166	892
Investment in bond securities, current portion	2,671	2,432
Prepaid expenses and other assets	467	368
Assets held for sale	0	3,019
Total Current Assets	10,004	15,220
PROPERTY & EQUIPMENT
Land	5,052	5,052
Land improvements	13,853	12,943
Buildings	22,869	22,869
Machinery and equipment	10,500	10,360
Total Property & Equipment	52,274	51,224
Less accumulated depreciation	(36,215)	(35,346)
Property & Equipment, net	16,059	15,878
OTHER ASSETS
Investment in bond securities, less current portion	464	551
Investment in joint venture	1,608	0
Deferred development costs	12,815	9,566
Other noncurrent assets	1,273	1,191
Total Other Assets	16,160	11,308
TOTAL ASSETS	42,223	42,406	[1]
CURRENT LIABILITIES
Accounts payable	1,154	589
Payroll and employee benefits	502	869
Accrued retirement benefits, current portion	142	142
Deferred revenue, current portion	217	227
Other current liabilities	465	480
Total Current Liabilities	2,480	2,307
LONG-TERM LIABILITIES
Accrued retirement benefits	1,550	2,612
Other noncurrent liabilities	14	30
Total Long-Term Liabilities	5,039	6,327
TOTAL LIABILITIES	7,519	8,634
COMMITMENTS & CONTINGENCIES
STOCKHOLDERS’ EQUITY
Common stock--$.0001 par value at December 31, 2023 and 2022, respectively; 43,000,000 shares authorized; 19,615,350 and 19,476,671 shares issued and outstanding at December 31, 2023 and 2022, respectively	84,680	83,392
Additional paid in capital	10,538	9,184
Accumulated deficit	(53,617)	(50,537)
Accumulated other comprehensive loss	(6,897)	(8,267)
Total Stockholders’ Equity	34,704	33,772
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	42,223	42,406
License [Member]
LONG-TERM LIABILITIES
Deferred revenue, less current portion	1,367	1,500
Member Deposits [Member]
LONG-TERM LIABILITIES
Deferred revenue, less current portion	$ 2,108	$ 2,185

[1] The Land Development and Sales segment includes a $1.6 million equity method investment