Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	1 Months Ended							3 Months Ended		6 Months Ended
	Jul. 26, 2016	Jul. 21, 2016	May 31, 2016	Jan. 31, 2016	Jun. 30, 2015	Apr. 30, 2015	Feb. 28, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Aug. 11, 2016	Dec. 31, 2015
Summary of Significant Accounting Policies [Line Items]
Working Capital Net Amount								$ 10,274,966		$ 10,274,966
Net Income (Loss) Attributable to Parent, Total								(1,967,734)	$ 601,353	(2,459,571)	$ (6,024,480)
Retained Earnings (Accumulated Deficit), Total								(57,733,000)		(57,733,000)			$ (54,806,762)
Future Unconditional Guarantee Paid										$ 2,200,000
Contingent Fee Description										Litigation costs are based primarily on a contingent fee structure (expected to average less than 20% of license revenue for a portfolio) and as such do not scale significantly with the acquisition of new portfolios.
Proceeds from Issuance of Common Stock			$ 1,200,000			$ 1,835,000				$ 2,425,000	$ 0
License and Services Revenue							$ 2,000,000
Provision for Doubtful Accounts										22,350
Proceeds from License Fees Received			1,300,000
Estimated During 2016 [Member]
Summary of Significant Accounting Policies [Line Items]
Debt Instrument, Face Amount								7,400,000		7,400,000
Other Cost and Expense, Operating								1,500,000
Litigation Settlement, Expense								1,000,000
Estimated Capital Expenditure								4,800,000
Employee-related Liabilities, Current								2,300,000		2,300,000
Series D Preferred Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Issuance of Preferred Stock and Preference Stock			$ 250,000
Fortress Agreement [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Lines of Credit							$ 1,126,900
Subsequent Event [Member] | Series C Preferred Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Payments for Repurchase of Redeemable Preferred Stock	$ 2,500,000
Preferred Stock Shares Redemption Percentage		70.00%
Subsequent Event [Member] | Series E Preferred Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Issuance of Preferred Stock and Preference Stock	$ 2,825,000	$ 3,000,000
Subsequent Event [Member] | Fortress Agreement [Member]
Summary of Significant Accounting Policies [Line Items]
Cash												$ 469,389
Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Sale of Intangible Assets				$ 2,175,000	$ 4,000,000
Finite-lived Intangible Assets Acquired										12,109,118
Patents [Member] | Estimated During 2016 [Member]
Summary of Significant Accounting Policies [Line Items]
Payments to Acquire Intangible Assets								5,400,000
License and Services Revenue										19,200,000
Patents [Member] | Estimated During 2016 [Member] | Inventergy Innovations, LLC [Member]
Summary of Significant Accounting Policies [Line Items]
License and Services Revenue										4,400,000
Patents [Member] | Estimated During 2016 [Member] | ECS [Member]
Summary of Significant Accounting Policies [Line Items]
License and Services Revenue										$ 300,000
Patents [Member] | Fixed Payments To Acquire Intangibles [Member] | Estimated During 2016 [Member]
Summary of Significant Accounting Policies [Line Items]
Payments to Acquire Intangible Assets								2,200,000
Patents [Member] | Variable Payments To Acquire Intangibles [Member] | Estimated During 2016 [Member]
Summary of Significant Accounting Policies [Line Items]
Payments to Acquire Intangible Assets								$ 3,200,000
Minimum [Member] | Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets										7 years
Maximum [Member] | Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets										10 years