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Summary of significant accounting policies.

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Upfront license fee1.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

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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 revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)			3 Months Ended
	Mar. 28, 2022	Jan. 21, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Summary Of Significant Accounting Policies [Line Items]
Reclassifications out of accumulated other comprehensive loss			$ 0	$ 0
Allowance for doubtful accounts			26,000		$ 0
Cash consideration paid			199,000
Impairment charge			$ 0
Percentage of direct billing channel revenue insures represent			53.00%	36.00%
Revenue			$ 3,867,926	$ 2,336,489
Deferred revenue			3,100		$ 1,500
Cost of goods sold				112,900
Advertising expense			953,400	842,600
Deemed dividend on discounting of warrants			640,000
Accounting Standards Update 2014-09
Summary Of Significant Accounting Policies [Line Items]
Cost of goods sold			$ 304,200	$ 50,800
Sales Revenue, Net [Member] \| Geographic Concentration Risk [Member] \| United States [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			57.00%
Sales Revenue, Net [Member] \| Geographic Concentration Risk [Member] \| China [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			26.00%
Sales Revenue, Net [Member] \| Geographic Concentration Risk [Member] \| Germany [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			15.00%
Sales Revenue, Net [Member] \| Geographic Concentration Risk [Member] \| Other International Locations [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			2.00%
Product Revenue [Member] \| Geographic Concentration Risk [Member] \| United States [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			77.00%	87.00%
Product Revenue [Member] \| Geographic Concentration Risk [Member] \| Germany [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			20.00%
Product Revenue [Member] \| Geographic Concentration Risk [Member] \| Other International Locations [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue			3.00%	13.00%
Beijing Ryzur Medical Investment Co., Ltd
Summary Of Significant Accounting Policies [Line Items]
Upfront license fee		$ 2,700,000
License Revenue
Summary Of Significant Accounting Policies [Line Items]
Revenue			$ 1,000,000
License Revenue \| Beijing Ryzur Medical Investment Co., Ltd
Summary Of Significant Accounting Policies [Line Items]
Revenue			1,000,000.0
O&P Providers or Third Party Payors [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue recognized			$ 623,500	$ 1,131,400
Jiangxi Myomo Medical Assistive Appliance Co. Ltd
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	19.90%
Cash consideration paid	$ 199,000