Intangible Assets (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Amortization Expense	$ 338	$ 531
7/24/13 - Rockstar Patent Portfolio Acquired [Member]
Amortization Expense	18	26
9/10/13 - North South patent portfolio Acquired [Member]
Amortization Expense	5	8
12/31/13 - Rockstar Patent Portfolio Acquired [Member]
Amortization Expense	$ 315	$ 497

Amount of accumulated depreciation and amortization at the balance sheet date before fresh-start adjustments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=34712771&loc=d3e56426-112766

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6918054&loc=SL2890621-112765

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant