Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 846	$ 1,030
Prepaid expenses	370	574
Other current assets	16	25
Total current assets	1,232	1,629
Intangible assets, net	6	7
Operating lease right-of-use assets	1,562	1,785
Other assets, net	20	19
Total assets	2,820	3,440
CURRENT LIABILITIES:
Accounts payable	919	706
Accrued expenses:
Salaries and wages	19	27
Professional fees	54	109
Other accrued expenses	502	555
Related party note payable, current portion	657	94
Operating lease liabilities, current portion	76	155
Total current liabilities	2,227	1,646
LONG-TERM LIABILITES:
Secured contingent payment obligation	38,612	37,372
Unsecured contingent payment obligations	4,848	5,691
Convertible notes	4,280	2,895
Related party note payable, net of current portion		609
Operating lease liabilities, net of current portion	2	4
Total long-term liabilities	47,742	46,571
Total liabilities	49,969	48,217
SHAREHOLDERS' DEFICIT:
Common stock, $0.01 par value, 150,000 shares authorized, 78,166 and 76,992 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	782	770
Additional paid-in capital	389,547	387,865
Accumulated deficit	(437,478)	(433,412)
Total shareholders' deficit	(47,149)	(44,777)
Total liabilities and shareholders' deficit	$ 2,820	$ 3,440