Restructuring And Related Activities (Details) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 2,300,000	$ 2,300,000
Severance Costs	224,773
Restructuring Reserve	257,258	257,258	$ 257,258
Facility Relocation Costs	225,000
Inventory Write-down			2,595,884	$ 0
Quell [Member]
Restructuring Cost and Reserve [Line Items]
Inventory Write-down	1,895,884
Quell [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Inventory Write-down	1,895,884
Quell [Member] | Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance And Relocation Costs	201,514
Quell [Member] | Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance And Relocation Costs	129,812
Quell [Member] | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance And Relocation Costs	118,447
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring			(192,515)
Restructuring Reserve	32,258	32,258	32,258
Facility Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	225,000	$ 225,000	$ 225,000
Purchase Commitment [Member] | Quell [Member]
Restructuring Cost and Reserve [Line Items]
Inventory Write-down	410,000
Excess Parts [Member] | Quell [Member]
Restructuring Cost and Reserve [Line Items]
Inventory Write-down	$ 1,485,884