The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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21. Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Tax interest and penalties	$ 0	$ 0	$ 0
Tax years open for examination	2012
Somaxon [Member]
Federal net operating loss carryforwards	$ 250,200
Research Tax Credit Carryforwards	$ 4,500
Somaxon [Member] \| Minimum [Member]
Federal net operating loss carryforwards expiration date	Dec. 31, 2023
Operating Loss Carryforwards, Limitations on Use	However, based on the change in ownership provision of IRC Section 382, $21.9 million of those NOL are expected to be available for utilization.
Research Tax Credit Carryforward, Limitations on Use	However, based on the change in ownership provision of IRC Section 382, approximately $300,000 of those credits are expected to be available for utilization.
Somaxon [Member] \| Maximum [Member]
Federal net operating loss carryforwards expiration date	Dec. 31, 2032
Pernix Therapeutics Holdings, Inc [Member]
Federal net operating loss carryforwards	$ 9,800
Federal net operating loss carryforwards expiration date	Dec. 31, 2032
GTA GP, Inc [Member]
Federal net operating loss carryforwards	$ 85,300
GTA GP, Inc [Member] \| Minimum [Member]
Federal net operating loss carryforwards expiration date	Dec. 31, 2033
Operating Loss Carryforwards, Limitations on Use	However, based on the change in ownership provisions of IRC Section 382, approximately $500,000 of those NOL are expected to be available for utilization.
GTA GP, Inc [Member] \| Maximum [Member]
Federal net operating loss carryforwards expiration date	Dec. 31, 2033