Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Aug. 10, 2017	Dec. 31, 2016
Summary of Significant Accounting Policies [Line Items]
Working Capital Net Amount	$ 4,052,012
Retained Earnings (Accumulated Deficit), Total	(25,869,033)			$ (63,003,664)
Employee-related Liabilities, Current	2,100,000
Maintenance Costs	300,000
Other Cost and Expense, Operating	1,000,000
Proceeds from Issuance of Common Stock	0	$ 1,182,278
Estimated Capital Expenditure	3,400,000
Proceeds from Issuance of Preferred Stock and Preference Stock	0	$ 2,425,000
Common Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Issuance of Common Stock	8,100,000
eOn Communications Systems Inc [Member]
Summary of Significant Accounting Policies [Line Items]
License and Services Revenue	363,000
Convertible Preferred Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Issuance of Preferred Stock and Preference Stock	1,500,000
Senior Debt Agreement [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Lines of Credit	1,126,900
Subsequent Event [Member]
Summary of Significant Accounting Policies [Line Items]
Cash			$ 47,066
Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Sale of Intangible Assets	$ 7,550,000