INCOME TAXES (Narrative) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Income Taxes [Line Items]
Operating loss carryforwards	$ 167,856
Research and Development Credit Carryforward
Income Taxes [Line Items]
Tax credit carryforward	900
Federal | Annovis, Inc.
Income Taxes [Line Items]
Operating loss carryforwards	1,200
State
Income Taxes [Line Items]
Operating loss carryforwards	$ 62,000