Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 30	$ 75
Accounts receivable	263	214
Prepaid expenses and other current assets	21	32
Total current assets	314	321
Patents and other intangible assets, net	825	947
Other long-term assets	15	16
Total assets	1,154	1,284
Current liabilities:
Accounts payable	400	463
Accrued expenses	267	303
Deferred revenues and customer prepayments	600	1,151
Notes payable	242	242
Derivative financial instruments - warrants	3	2
Derivative financial instruments - Series C and D preferred stock and debentures payable	16	6
Debentures payable - carried at fair value	40,567	37,384
Total current liabilities	$ 42,095	$ 39,551
Commitments and contingencies
Shareholders' deficit:
Common stock, no par value, 7,500,000,000 shares authorized, 4,846,748,489 and 4,166,142,620 shares issued and outstanding as of June 30, 2015 and December 31, 2014, respectively	$ 4,985	$ 4,985
Additional paid in capital	192,287	192,224
Accumulated deficit	(242,099)	(239,377)
Treasury stock, at cost, 2,012 shares of common stock	(779)	(779)
Total shareholders' deficit	(45,606)	(42,947)
Total liabilities and shareholders' deficit	1,154	1,284
Series C Convertible Preferred Stock [Member]
Current liabilities:
Preferred stock	4,317	4,332
Series D Convertible Preferred Stock [Member]
Current liabilities:
Preferred stock	$ 348	$ 348