Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Nov. 08, 2017	Dec. 31, 2016
Summary of Significant Accounting Policies [Line Items]
Working Capital Net Amount	$ 4,686,026
Retained Earnings (Accumulated Deficit), Total	(26,677,465)			$ (63,003,664)
Employee-related Liabilities, Current	1,900,000
Maintenance Costs	200,000
Other Cost and Expense, Operating	1,100,000
Proceeds from Issuance of Common Stock	0	$ 1,182,278
Estimated Capital Expenditure	3,200,000
Proceeds from Issuance of Preferred Stock and Preference Stock	0	$ 5,221,998
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			$ 7,870
Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Sale of Intangible Assets	$ 7,550,000