CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities:
Net income	$ 424	$ 1,318
Adjustments to reconcile net income to net cash used in operating activities:
Non-cash license expense		120
Non-cash gain on settlement of liabilities		(12)
Compensation related to stock options and warrants	167	296
Changes in fair market value of liabilities:
Stock reserved for issuance to settle liabilities	75
Price adjustable warrants	(1,786)	(3,643)
Cash changes in assets and liabilities:
Accounts receivable		500
Prepaid expenses and other assets	60	64
Accounts payable	569	(173)
Accrued and other liabilities	(198)	431
Net cash used in operating activities	(689)	(1,099)
Financing activities:
Proceeds from promissory notes	300
Proceeds from exercise of warrants for common stock		1
Net cash provided by financing activities	300	1
Net decrease in cash	(389)	(1,098)
Cash - Beginning of period	710	1,824
Cash - End of period	321	726
Supplemental disclosure of cash flow information and non-cash financing activities:
Issuance of common stock to settle liabilities	135	195
Fair value of warrants issued to purchase common stock to settle liabilities		65
Fair value of derivative warrant liability reclassified to additional paid-in capital	86
Series C convertible preferred stock
Supplemental disclosure of cash flow information and non-cash financing activities:
Par value of common stock issued upon conversion		4
Series D convertible preferred stock
Supplemental disclosure of cash flow information and non-cash financing activities:
Par value of common stock issued upon conversion	$ 8