CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 421	$ 444
Accounts receivable, net	328	264
Inventories, net	39	50
Other current assets	325	537
Assets held for sale	690	1,987
Total current assets	1,803	3,282
PROPERTY AND EQUIPMENT:
Equipment	5,592	5,593
Furniture, fixtures & leasehold improvements	1,565	1,565
Property and equipment, gross	7,157	7,158
Less: accumulated depreciation	(6,953)	(6,899)
Property and equipment, net	204	259
OTHER ASSETS:
Intangibles, net	1,029	1,170
Other assets	58	105
Assets	3,094	4,816
CURRENT LIABILITIES:
Current maturities of long-term debt	7,814	7,596
Accounts payable	5,620	3,781
Accrued compensation	259	321
Accrued expenses	2,847	3,734
Deferred revenue	111	217
Other liabilities	1,068	1,068
Liabilities held for sale	0	264
Total current liabilities	17,719	16,981
LONG TERM LIABILITIES:
Common stock warrant liability	1,442	350
Other long-term liabilities	223	305
Total liabilities	19,384	17,636
STOCKHOLDERS’ DEFICIT:
Convertible preferred stock, $0.01 par value, 15,000,000 shares authorized, 214,705 and 4,029,502 shares issued and outstanding, respectively	2	40
Common stock, $0.01 par value, 150,000,000 shares authorized, 23,103,875 and 13,915,691 shares issued and outstanding, respectively	231	139
Additional paid-in capital	201,140	200,403
Accumulated other comprehensive income	0	10
Accumulated deficit	(217,663)	(213,412)
Total stockholders’ deficit	(16,290)	(12,820)
Liabilities and stockholders' equity	$ 3,094	$ 4,816