CARES Act Of 2020 net operating loss carryback period.

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CARES Act Of 2020 percentage of net operating loss carryovers and carrybacks offsetting taxable income.

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Number of additional customers.

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Number of customer.

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Working capital.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of obligation due after one year or beyond the normal operating cycle, if longer.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Description of Business, Basis of Presentation and Principles of Consolidation - Additional Information (Details)		3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 27, 2020	Sep. 30, 2020 USD ($) Customer	Sep. 30, 2019 Customer	Sep. 30, 2020 USD ($) Segment Customer	Sep. 30, 2019 Customer	Dec. 31, 2019 USD ($) Customer
Significant Accounting Policies [Line Items]
Number of operating segments \| Segment				1
CARES Act of 2020 percentage of NOL carryovers and carrybacks offsetting taxable income	100.00%
CARES act of 2020, net operating loss carryback period	5 years
Accumulated deficit \| $		$ (186,897,880)		$ (186,897,880)		$ (170,317,643)
Working capital \| $		28,400,000		28,400,000
Long-term liabilities \| $		$ 14,500,000		$ 14,500,000
Sales Revenue, Net \| Customer Concentration Risk
Significant Accounting Policies [Line Items]
Number of customers \| Customer		2	2	2	3
Sales Revenue, Net \| Customer Concentration Risk \| Customers Located Outside Of United States
Significant Accounting Policies [Line Items]
Sales revenue percentage		19.00%	29.00%	31.00%	31.00%
Sales Revenue, Net \| Customer Concentration Risk \| Customer One
Significant Accounting Policies [Line Items]
Sales revenue percentage		24.00%	39.00%	16.00%	23.00%
Sales Revenue, Net \| Customer Concentration Risk \| Customer Two
Significant Accounting Policies [Line Items]
Sales revenue percentage		10.00%	20.00%	10.00%	22.00%
Sales Revenue, Net \| Customer Concentration Risk \| Customer Three
Significant Accounting Policies [Line Items]
Sales revenue percentage					21.00%
Accounts Receivable \| Customer Concentration Risk
Significant Accounting Policies [Line Items]
Number of customers \| Customer				2		2
Number of additional customers \| Customer				2
Accounts Receivable \| Customer Concentration Risk \| Customer One
Significant Accounting Policies [Line Items]
Sales revenue percentage				30.00%		29.00%
Accounts Receivable \| Customer Concentration Risk \| Customer Two
Significant Accounting Policies [Line Items]
Sales revenue percentage				13.00%		25.00%
Accounts Receivable \| Customer Concentration Risk \| Customer Three
Significant Accounting Policies [Line Items]
Sales revenue percentage				11.00%
Accounts Receivable \| Customer Concentration Risk \| Customer Four
Significant Accounting Policies [Line Items]
Sales revenue percentage				11.00%