18. Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Federal net operating loss carryforwards	$ 62,100
Federal net operating loss carryforwards expiration date	Dec. 31, 2035
Operating Loss Carryforwards, Limitations on Use	The Company has federal NOL's of approximately $62.1 million at December 31, 2016 ranging in expiration from 2035 to 2036. Included in the $62.1 million are $798,000 of NOLs which have not been recognized for financial reporting purposes due to unrecognized tax benefits and excess tax benefits related to stock-based compensation. Excess tax benefits related to option exercises cannot be recognized until realized through a reduction of current taxes payable.
Tax interest and penalties	$ 0	$ 0
Tax years open for examination	2014
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, $22.4 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 $263,000 of those credits are expected to be available for utilization.
Somaxon [Member] \| Maximum [Member]
Federal net operating loss carryforwards expiration date	Dec. 31, 2033
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, 2021
Operating Loss Carryforwards, Limitations on Use	However, based on the change in ownership provisions of IRC Section 382, approximately $519,000 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, 2029

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

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-Publisher FASB
-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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