CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 222	$ 444
Accounts receivable, net	170	264
Inventories, net	44	50
Other current assets	503	537
Assets held for sale	1,182	1,987
Total current assets	2,121	3,282
PROPERTY AND EQUIPMENT:
Equipment	5,612	5,593
Furniture, fixtures & leasehold improvements	1,565	1,565
Property and equipment, gross	7,177	7,158
Less: accumulated depreciation	(6,940)	(6,899)
Property and equipment, net	237	259
OTHER ASSETS:
Intangibles, net	1,146	1,170
Other assets	88	105
Assets	3,592	4,816
CURRENT LIABILITIES:
Current maturities of long-term debt	7,346	7,596
Accounts payable	5,010	3,781
Accrued compensation	306	321
Accrued expenses	3,339	3,734
Deferred revenue	192	217
Other liabilities	1,068	1,068
Liabilities held for sale	20	264
Total current liabilities	17,281	16,981
LONG TERM LIABILITIES:
Common stock warrant liability	1,466	350
Other long-term liabilities	255	305
Total liabilities	19,002	17,636
STOCKHOLDERS’ DEFICIT:
Convertible preferred stock, $0.01 par value, 15,000,000 shares authorized, 2,365,243 and 4,029,502 shares issued and outstanding, respectively	24	40
Common stock, $0.01 par value, 150,000,000 shares authorized, 20,695,870 and 13,915,691 shares issued and outstanding, respectively	207	139
Additional paid-in capital	201,025	200,403
Accumulated other comprehensive income	0	10
Accumulated deficit	(216,666)	(213,412)
Total stockholders’ deficit	(15,410)	(12,820)
Liabilities and stockholders' equity	$ 3,592	$ 4,816