Condensed Consolidated Balance Sheets (Curent Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 7,246	$ 8,499
Restricted cash	0	10
Accounts receivable, net	1,248	892
Investments, current portion	2,785	2,432
Prepaid expenses and other assets	497	368
Assets held for sale	3,056	3,019
Total current assets	14,832	15,220
PROPERTY & EQUIPMENT, NET	15,566	15,878
OTHER ASSETS
Investments, net of current portion	274	551
Deferred development costs	9,585	9,566
Other noncurrent assets	1,198	1,191
Total other assets	11,057	11,308
TOTAL ASSETS	41,455	42,406
CURRENT LIABILITIES
Accounts payable	459	589
Payroll and employee benefits	736	869
Accrued retirement benefits, current portion	142	142
Deferred revenue, current portion	447	227
Other current liabilities	488	480
Total current liabilities	2,272	2,307
LONG-TERM LIABILITIES
Accrued retirement benefits, net of current portion	2,626	2,612
Other noncurrent liabilities	19	30
Total long-term liabilities	6,226	6,327
TOTAL LIABILITIES	8,498	8,634
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; 19,589,504 and 19,476,671 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	84,421	83,392
Additional paid-in-capital	9,657	9,184
Accumulated deficit	(53,018)	(50,537)
Accumulated other comprehensive loss	(8,103)	(8,267)
Total stockholders' equity	32,957	33,772
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	41,455	42,406
License [Member]
LONG-TERM LIABILITIES
Deferred revenue, net of current portion	1,433	1,500
Member Deposits [Member]
LONG-TERM LIABILITIES
Deferred revenue, net of current portion	$ 2,148	$ 2,185