Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2026		Dec. 31, 2025
CURRENT ASSETS
Cash and cash equivalents	$ 3,845		$ 5,295
Accounts receivable, net	1,889		1,371
Prepaid expenses and other assets	402		608
Assets held for sale	1,862		1,827
Total current assets	7,998		9,101
PROPERTY & EQUIPMENT, NET	18,117		18,243
OTHER ASSETS
Right of use assets	554		518
Other noncurrent assets	2,710		2,706
Total other assets	21,757		20,624
TOTAL ASSETS	47,872	[1]	47,968
Liabilities, Current [Abstract]
Accounts payable	1,680		2,774
Payroll and employee benefits	607		1,159
Accrued retirement benefits, current portion	1,609		1,620
Deferred revenue, current portion	1,106		833
Long-term debt, current portion	85		85
Lease liabilities, current portion	88		106
Other current liabilities	604		786
Total current liabilities	5,779		7,363
Liabilities, Noncurrent [Abstract]
Line of credit	6,500		4,000
Long-term debt, noncurrent portion	88		102
Lease liabilities, noncurrent portion	461		413
Total long-term liabilities	10,042		7,542
TOTAL LIABILITIES	15,821		14,905
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Preferred stock--$0.0001 par value; 5,000,000 shares authorized; no shares issued and outstanding	0		0
Common stock--$0.0001 par value; 43,000,000 shares authorized; 19,799,569 and 19,755,431 shares issued and outstanding at March 31, 2026 and December 31, 2025, respectively	88,308		87,580
Additional paid-in-capital	17,665		17,346
Accumulated deficit	(73,646)		(71,587)
Accumulated other comprehensive loss	(276)		(276)
Total stockholders' equity	32,051		33,063
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	47,872		47,968
Excluding Deposits [Member]
Liabilities, Noncurrent [Abstract]
Deferred revenue, noncurrent portion	1,066		1,100
Member Deposits [Member]
Liabilities, Noncurrent [Abstract]
Deferred revenue, noncurrent portion	1,927		1,927
Development Project [Member]
OTHER ASSETS
Deferred development costs	16,543		15,720
Agave Venture [Member]
OTHER ASSETS
Deferred development costs	$ 1,950		$ 1,680

[1] Segment assets are located in the United States.