Strategic Alliance and Investment by Elutions, Inc (Details 5) (Fair Value, Inputs, Level 3 [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
	Mar. 29, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value at Closing, March 18, 2014	$ 1,536
Total unrealized gains (losses) included in Other Expense in the Condensed Consolidated Statements of Operations and Comprehensive Loss	17
Fair value at March 29, 2014	1,553
Tracking Warrant [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value at Closing, March 18, 2014	1,259
Total unrealized gains (losses) included in Other Expense in the Condensed Consolidated Statements of Operations and Comprehensive Loss	33
Fair value at March 29, 2014	1,292
Holder Redemption Option [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value at Closing, March 18, 2014	277
Total unrealized gains (losses) included in Other Expense in the Condensed Consolidated Statements of Operations and Comprehensive Loss	(16)
Fair value at March 29, 2014	$ 261