Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
CURRENT ASSETS
Cash	$ 11,074	$ 5,596
Restricted cash	241	0
Accounts receivable, net	1,127	1,103
Prepaid expenses and other assets	657	333
Assets held for sale	3,019	3,144
Total current assets	16,118	10,176
PROPERTY & EQUIPMENT, NET	16,157	16,998
OTHER ASSETS
Deferred development costs	9,566	9,564
Other noncurrent assets	1,189	1,181
Total other assets	10,755	10,745
TOTAL ASSETS	43,030	37,919
CURRENT LIABILITIES
Accounts payable	629	580
Payroll and employee benefits	813	949
Accrued retirement benefits, current portion	142	142
Deferred revenue, current portion	518	217
Other current liabilities	476	509
Total current liabilities	2,578	2,397
LONG-TERM LIABILITIES
Accrued retirement benefits, net of current portion	2,015	7,937
Other noncurrent liabilities	53	53
Total long-term liabilities	5,786	11,932
TOTAL LIABILITIES	8,364	14,329
Commitments and contingencies
STOCKHOLDERS' EQUITY
Preferred stock--$.0001 par value; 5,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock--$.0001 par value and no par value at September 30, 2022 and December 31, 2021, respectively; 43,000,000 shares authorized; 19,459,558 and 19,383,288 shares issued and outstandingat September 30, 2022 and December 31, 2021, respectively	83,203	82,378
Additional paid-in-capital	9,184	9,184
Accumulated deficit	(42,541)	(52,324)
Accumulated other comprehensive loss	(15,180)	(15,648)
Total stockholders' equity	34,666	23,590
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	43,030	37,919
License [Member]
LONG-TERM LIABILITIES
Deferred revenue, net of current portion	1,533	1,633
Member Deposits [Member]
LONG-TERM LIABILITIES
Deferred revenue, net of current portion	$ 2,185	$ 2,309