v3.22.1

General (Details)													1 Months Ended				3 Months Ended	6 Months Ended		12 Months Ended
	Jan. 31, 2022 USD ($)	Oct. 13, 2021 item	Apr. 21, 2021 item	Apr. 08, 2021 item	Mar. 15, 2021 item	Mar. 08, 2021 item	Feb. 16, 2021 item	Jan. 20, 2021 item	Jan. 12, 2021 item	Aug. 28, 2020 USD ($)	Jun. 19, 2020 USD ($)	Apr. 06, 2020 USD ($) shares	Mar. 31, 2022 item	Feb. 28, 2022 item	Jan. 31, 2022 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) location item $ / shares shares	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) location segment item $ / shares shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 17, 2020 $ / shares shares	Aug. 25, 2020 $ / shares shares	Jun. 30, 2020 shares	Jun. 17, 2020 $ / shares shares	Jun. 04, 2020 shares
Number of operating segments | segment																				3
Revenues																				$ 73,729,000	$ 8,385,000
Revenue contract amount															$ 5,534,000					2,001,000
Recognized revenue																	$ 549,000			549,000	914,000
Recognized revenue																	1,557,000
Impairment expense related to operating lease right of use assets																				747,000	6,341,000
Impairment of intangible assets																				0	3,934,000
Lease concessions																				2,078,000	2,107,000
Repurchase and retirement of common stock																				7,825,000
Cash and cash equivalents																	105,506,000			105,506,000	89,801,000
Total current assets																	108,979,000			108,979,000	91,779,000
Total current liabilities																	19,827,000			19,827,000	13,477,000
Working capital																	$ 89,152,000			$ 89,152,000
Working capital deficiency																					$ 78,302,000
Gross proceeds																$ 4,258,000
Warrants issued | shares																								1,942,131		1,374,750
Warrant exercise price | $ / shares																					$ 1.70
Boston Logan International Airport [Member]
Number of separate testing rooms | item									7
Salt Lake City International Airport [Member]
Number of separate testing rooms | item								4
Newark Liberty International Airport [Member]
Number of separate testing rooms | item							4
Houston George Bush Intercontinental Airport [Member]
Number of separate testing rooms | item						4
Dulles International Airport [Member]
Number of separate testing rooms | item					9
Reagan National Airport [Member]
Number of separate testing rooms | item					4
Seattle-Tacoma International Airport [Member]
Number of separate testing rooms | item				8
San Francisco International Airport [Member]
Number of separate testing rooms | item			9
Hartsfield-Jackson Atlanta International Airport [Member]
Number of separate testing rooms | item		6
Denver International Airport [Member]
Number of separate testing rooms | item														6
Istanbul Airport [Member]
Number of location reopenings planned | location																				5
United States
Number of location reopenings planned | location																				4
Revenues																				$ 71,114,000	$ 7,051,000
Non-US | Schiphol Amsterdam International Airport [Member]
Number of operating locations | location																	3			3
Offerings
Gross proceeds											$ 40,000,000
Warrants issued | shares																									7,614,700
Warrant exercise price | $ / shares																									$ 5.25
Minimum [Member]
Rent concession period																				3 months
Maximum [Member]
Rent concession period																				28 months
XpresSpa
Revenues																				$ 4,614,000	8,045,000
Number of hours worked per day during post-pandemic time																	8			8
Number of hours worked pre-pandemic time																	16			16
XpresSpa | Dubai International Airport [Member]
Number of operating locations | location																	3			3
XpresSpa | United States
Number of operating locations | location																	16			16
Number of re-opened top performing xpress spa locations | location																	16			16
XpresSpa | Non-US
Number of airport locations | location																	6			6
XpresTest
Number of operating locations | location																	15			15
Revenues																				$ 69,078,000	$ 80,000
Revenue contract amount	$ 5,534,000																			$ 2,001,000
Number of airports | item																	12			12
Recognized revenue																	$ 527,000			$ 527,000
Subsequent event
Recognized revenue																		$ 3,977,000
Subsequent event | Orlando International Airport [Member]
Number of separate testing rooms | item													5
Subsequent event | XpresTest
Recognized revenue																		$ 3,977,000
Purchase agreement
Gross proceeds										$ 35,333,000		$ 2,806,000
Warrants issued | shares												481,818										24,509,806	11,216,932		7,614,700
Cash fees paid										$ 3,914,000
Warrant exercise price | $ / shares																						$ 1.70	$ 3.02
MSAs | XpresTest
Recognized revenue																			$ 16,843,000
Placement Agent Agreement
Cash fees paid																				$ 2,162,000
December 2020 Warrants
Total of warrants exercised | shares																				11,273,529
Gross proceeds																				$ 19,245,000
H.C.W. Warrants
Warrants issued | shares																	846,588			846,588
Cash fees paid																				$ 2,162,000
Warrant exercise price | $ / shares																	$ 2.125			$ 2.125
H.C.W. Warrants | Purchase agreement
Warrants issued | shares																							897,355
Warrant exercise price | $ / shares																					$ 2.13		$ 3.9375		$ 6.5663
H.C.W. Warrants | Placement Agent Agreement
Warrants issued | shares																	846,588			846,588
Warrant exercise price | $ / shares																	$ 2.125			$ 2.125
Palladium Warrants
Warrants issued | shares																	325,500			325,500
Warrant exercise price | $ / shares																	$ 1.70			$ 1.70
Palladium Warrants | Purchase agreement
Warrants issued | shares																							222,222
Warrant exercise price | $ / shares																							$ 3.02		$ 5.25
Palladium Warrants | Placement Agent Agreement
Warrants issued | shares																	325,500			325,500
Warrant exercise price | $ / shares																	$ 1.70			$ 1.70

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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