Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 28, 2014	Dec. 31, 2013	Oct. 31, 2013
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Liquid investment maturity period	Three months or less
Reserve for obsolete inventory	$ 1,409,000		$ 325,000
Number of segments operated by the company	1
Associated revenue over the related service period	Generally expected to be two years
Deferred financing costs	821,000		0
Uncertain tax positions	0
Tax benefits to be recognized on likelihood of being realized upon ultimate resolution	Greater than fifty percent
Open tax year subject to examination	2009
Comprehensive income (loss)	0
Warrants issued to purchase common stock				685,715
Inventory Valuation Reserves	539,000
Class of Warrant or Right, Outstanding	13,078,920	1,329,731
Maximum [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of related assets	5 years
Minimum [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of related assets	3 years
Mela Find Systems [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Property and equipment, capitalization cost	0		5,188,000
Obsolete Inventory [Member]
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Reserve for obsolete inventory	870
Inventory Valuation Reserves	$ 870,000		$ 325,000