CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flow from operating activities
Net loss	$ (1,867)	$ (1,375)
Adjustments to reconcile net loss to net cash used in operating activities
Amortization	40	40
Depreciation	10	10
Stock-based compensation	95	92
(Increase) decrease in assets
Prepaid drug product for testing	(51)	(204)
Other current assets	(571)	(22)
Increase (decrease) in liabilities
Accounts payable and accrued expenses	(37)	54
Net cash used in operating activities	(2,381)	(1,405)
Net increase (decrease) in cash	(2,381)	(1,405)
Cash, beginning of period	8,854	13,859
Cash, end of period	$ 6,473	$ 12,454