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Significant Accounting Policies - Additional Information (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 30, 2019 USD ($) Device Patient | Oct. 30, 2019 CAD ($) Device Patient | Jun. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2020 USD ($) Device Lease Segment shares | Dec. 31, 2020 CAD ($) Device Segment shares | Dec. 31, 2019 USD ($) Agreement shares | Oct. 30, 2019 CAD ($) | Jan. 01, 2019 USD ($) | Dec. 31, 2018 USD ($)
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  | $ 74,000 |  | $ 210,000 |  |  |
Allowance for doubtful accounts |  |  |  |  |  | 400,000 |  | 200,000 |  |  |
Rent deposits receivable |  |  |  |  |  | 18,000 |  |  |  |  |
Refunds from research and development tax credits |  |  |  |  |  |  |  | 1,000 |  |  | $ 200,000
Inventory markdowns to net realizable value |  |  |  |  |  | 205,000 |  | 50,000 |  |  |
Depreciation expense |  |  |  |  |  | 119,000 |  | 127,000 |  |  |
Amortization expense related to intangible assets |  |  |  |  |  | 363,000 |  | 64,000 |  |  |
Proceeds from sale of property and equipment |  |  |  |  |  | 61,000 |  |  |  |  |
Selling, general and administrative |  |  |  |  |  | 9,714,000 |  | 16,521,000 |  |  |
Fair value measurement adjustments |  |  |  |  |  | 400,000 |  |  |  |  |
Business acquisition, goodwill not expected tax deductible amount |  |  |  |  |  | 700,000 |  |  |  |  |
Revenue |  |  |  |  |  | 661,000 |  | 1,496,000 |  |  |
Intangible asset impairment |  |  |  |  |  | 184,000 |  |  |  |  |
Operating lease ROU asset |  |  |  |  |  | 90,000 |  | 552,000 |  | $ 700,000 |
Operating lease liabilities |  |  |  |  |  | $ 91,000 |  | $ 637,000 |  | $ 700,000 |
Leases, initial term |  |  |  |  |  | 12 months |  |  |  |  |
Number of operating lease | Lease |  |  |  |  |  | 1 |  |  |  |  |
Number of operating segment | Segment |  |  |  |  |  | 1 | 1 |  |  |  |
Number of reportable segment | Segment |  |  |  |  |  | 1 | 1 |  |  |  |
Intangible asset impairment loss |  |  |  |  |  | $ 184,000 |  |  |  |  |
Intangible asset, net |  |  |  |  |  | $ 527,000 |  |  |  |  |
Dilutive common stock equivalents excluded from the computation of diluted weighted average shares outstanding | shares |  |  |  |  |  | 455,631 | 455,631 | 186,764 |  |  |
ASU 2018-13 |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Change in accounting principle, accounting standards update, adopted [true false] |  |  |  |  |  | true |  |  |  |  |
Change in accounting principle, accounting standards update, adoption date |  |  |  |  |  | Jan. 01, 2020 |  |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect [true false] |  |  |  |  |  | true |  |  |  |  |
ASU 2018-18 |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Change in accounting principle, accounting standards update, adopted [true false] |  |  |  |  |  | true |  |  |  |  |
Change in accounting principle, accounting standards update, adoption date |  |  |  |  |  | Jan. 01, 2020 |  |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect [true false] |  |  |  |  |  | true |  |  |  |  |
ASU 2020-06 |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Change in accounting principle, accounting standards update, adopted [true false] |  |  |  |  |  | true |  |  |  |  |
Change in accounting principle, accounting standards update, adoption date |  |  |  |  |  | Jan. 01, 2021 |  |  |  |  |
Change in accounting principle, accounting standards update, immaterial effect [true false] |  |  |  |  |  | true |  |  |  |  |
Change in accounting principle, accounting standards update, early adoption [true false] |  |  |  |  |  | true |  |  |  |  |
Outstanding Stock Options |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incremental common stock equivalents | shares |  |  |  |  |  | 0 | 0 | 0 |  |  |
Warrants |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incremental common stock equivalents | shares |  |  |  |  |  | 0 | 0 | 0 |  |  |
Restricted Stock Units |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incremental common stock equivalents | shares |  |  |  |  |  | 0 | 0 | 0 |  |  |
Fee Revenue |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | $ 9,000 |  | $ 37,000 |  |  |
License Revenue |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | $ 27,000 |  | 5,000 |  |  |
Customer Relationships |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible asset useful life |  |  |  |  |  | 1 year 3 months | 1 year 3 months |  |  |  |
Intangible asset amortization method |  |  |  |  |  | straight-line | straight-line |  |  |  |
Customer Relationships | Fair Value, Inputs, Level 3 |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible asset impairment |  |  |  |  |  | $ 200,000 |  |  |  |  |
Intangible asset impairment loss |  |  |  |  |  | 200,000 |  |  |  |  |
Intangible asset, net |  |  |  |  |  | $ 9,000 |  |  |  |  |
Proprietary Technology |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible asset useful life |  |  |  |  |  | 5 years | 5 years |  |  |  |
Intangible asset amortization method |  |  |  |  |  | straight-line | straight-line |  |  |  |
Reacquired Rights |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible asset useful life |  |  |  |  |  | 3 years 10 months 13 days | 3 years 10 months 13 days |  |  |  |
Intangible asset amortization method |  |  |  |  |  | straight-line | straight-line |  |  |  |
Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill impairment loss recognized |  |  |  |  |  | $ 0 |  |  |  |  |
Heuro Canada Incorporation | Selling, General and Administrative Expenses |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Amortization expense related to intangible assets |  |  |  |  |  | 400,000 |  | 100,000 |  |  |
Acquisition related costs |  |  |  |  |  |  |  | 100,000 |  |  |
Heuro Canada Incorporation | Selling, General and Administrative Expenses | Customer Relationships |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intangible asset impairment |  |  |  |  |  | 200,000 |  |  |  |  |
Intangible asset impairment loss |  |  |  |  |  | 200,000 |  |  |  |  |
HealthTech Connex, Inc. |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred revenue |  |  |  |  |  | 300,000 |  |  |  |  |
HealthTech Connex, Inc. | Neurocatch Device |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold per device |  |  |  |  | $ 600,000 |  |  |  |  |  |
HealthTech Connex, Inc. | Fee Revenue | Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  | $ 9,000 |  |  |  | $ 37,000 |  |  |
Percentage of franchise fee revenue |  |  |  |  | 50.00% |  |  |  |  |  |
Number of franchise agreements | Agreement |  |  |  |  |  |  |  | 3 |  |  |
HealthTech Connex, Inc. | Strategic Alliance Agreement | Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current receivables |  |  |  |  |  | 100,000 |  | $ 200,000 |  |  |
Contract assets |  |  |  |  |  | 0 |  | 0 |  |  |
Contract liabilities |  |  |  |  |  | 0 |  | 0 |  |  |
HealthTech Connex, Inc. | Strategic Alliance Agreement | Neurocatch Device |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | 630,000 |  | 1,500,000 |  |  |
HealthTech Connex, Inc. | Strategic Alliance Agreement | Services Performed Using Neurocatch Device |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  | 11,000 |  |  |
HealthTech Connex, Inc. | Clinical Research and Co-Promotion Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | $ 27,000 |  | 5,000 |  |  |
Number of patients to collect data | Patient | 200 | 200 |  |  |  |  |  |  |  |  |
Initial term of exclusive right | 10 years | 10 years |  |  |  |  |  |  |  |  |
Additional renewal term of exclusive right | 10 years | 10 years |  |  |  |  |  |  |  |  |
Written notice period for additional renewal term | 60 days | 60 days |  |  |  |  |  |  |  |  |
Acquisition date fair value |  | $ 360 |  |  |  |  |  |  |  |  |
License revenue agreement term |  |  |  |  |  | 10 years | 10 years |  |  |  |
HealthTech Connex, Inc. | Clinical Research and Co-Promotion Agreement | License Revenue |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Deferred revenue |  |  |  |  |  | $ 200,000 |  |  |  |  |
HealthTech Connex, Inc. | Heuro Canada Incorporation | Share Purchase Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consideration amount | $ 1,600,000 | 2,100 |  |  |  |  |  |  |  |  |
Cash | 400,000 | $ 500 |  |  |  |  |  |  |  |  |
HealthTech Connex, Inc. | Heuro Canada Incorporation | Strategic Alliance Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Potential amount receivable | $ 500,000 |  |  |  |  |  |  |  | $ 750 |  |
Minimum |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Effective income tax rate |  |  |  |  |  | 50.00% | 50.00% |  |  |  |
Leasehold Improvements |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 5 years | 5 years |  |  |  |
Sale of property with a net book value |  |  | $ 53,000 |  |  |  |  |  |  |  |
Furniture and Fixtures |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 7 years | 7 years |  |  |  |
Sale of property with a net book value |  |  | 118,000 |  |  |  |  |  |  |  |
Proceeds from sale of property and equipment |  |  | 61,000 |  |  |  |  |  |  |  |
Computer Software and Hardware | Minimum |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 3 years | 3 years |  |  |  |
Computer Software and Hardware | Maximum |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 5 years | 5 years |  |  |  |
Equipment |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 15 years | 15 years |  |  |  |
Software |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  | 3 years | 3 years |  |  |  |
Amortization expense related to intangible assets |  |  |  |  |  |  |  | 17,000 |  |  |
Furniture and Fixtures and Leasehold Improvements |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  | $ 110,000 |  |  |  |  |  |  |  |
PoNS |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of devices resulting in recognition of revenue | Device |  |  |  |  |  | 21 | 21 |  |  |  |
Number of devices recorded as deferred revenue | Device |  |  |  |  |  | 34 | 34 |  |  |  |
PoNS | Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | $ 100,000 |  |  |  |  |
PoNS | HealthTech Connex, Inc. |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of devices recorded as deferred revenue | Device |  |  |  |  |  | 34 | 34 |  |  |  |
PoNS | HealthTech Connex, Inc. | Share Purchase Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of devices | Device |  |  |  |  |  | 55 | 55 |  |  |  |
Revenue |  |  |  |  |  |  | $ 500 |  |  |  |
PoNS | HealthTech Connex, Inc. | Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of devices resulting in recognition of revenue | Device |  |  |  |  |  | 21 | 21 |  |  |  |
PoNS | HealthTech Connex, Inc. | Heuro Canada Incorporation | Share Purchase Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of devices | Device | 55 | 55 |  |  |  |  |  |  |  |  |
Fair value of PoNS | $ 400,000 |  |  |  |  |  |  |  | 500 |  |
Quebec |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other receivables refunds related to goods, services and sales tax. |  |  |  |  |  |  |  | 100,000 |  |  |
British Columbia | PoNS | HealthTech Connex, Inc. | Heuro Canada Incorporation | Co-Promotion Agreement |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair value of PoNS | $ 300,000 |  |  |  |  |  |  |  | $ 400 |  |
Revenue from Product Sales |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  | $ 100,000 |  | $ 200,000 |  |  |
Revenue from Product Sales | Heuro Canada Incorporation |  |  |  |  |  |  |  |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  | $ 630,000 |  |  |  |  |

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