Significant Customers (Tables)

12 Months Ended

Dec. 31, 2021

Concentration Risk [Line Items]

Schedule of Stockholders' Equity Note, Warrants or Rights

Issued and outstanding warrants are summarized below as of December 31, 2021:

		Common Shares in millions
	Exercise price	Vested	Non-Vested	Expiration
2018 Investment Agreement	$21.53	14.8	0.0	December 20, 2025
2018 Investment Agreement	$20.40	7.0	0.0	December 20, 2025

Accounts Receivable [Member]

Concentration Risk [Line Items]

Schedule of Revenue by Major Customers by Reporting Segments

The accounts receivable from the Company's three largest customers as of December 31, 2021 and 2020 are as follows (in thousands):

	Year Ending December 31,
	2021		2020
Customer	Accounts Receivable
DoD	$	57,998	$	32,625
Amazon	68,429		55,997
DHL	9,111		10,471

Revenue, Product and Service Benchmark [Member]

Concentration Risk [Line Items]

Schedule of Revenue by Major Customers by Reporting Segments

The percentage of the Company's revenues for the Company's three largest customers, for the years ended December 31, 2021, 2020 and 2019 are as follows:

	Year Ended December 31,
	2021	2020	2019
Customer	Percentage of Revenue
U.S. Department of Defense ("DoD")	26%	31%	34%
Amazon	35%	30%	23%
DHL	12%	12%	14%