Inventory (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials (LAVIV and product candidates)	$ 338,000	$ 357,000
Work-in-process (LAVIV)	144,000	214,000
Total inventory	482,000	571,000
Inventory reserve	0	0
Inventory expiration/obsolescence expense	$ 0	$ 0	$ 0