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Significant Risks and Uncertainties (Tables)

3 Months Ended

Mar. 31, 2021

Significant Risks And Uncertainties [Abstract]

Schedule of revenue channels accounted for 10% or more of the Company's net sales

	Three months ended March 31,
	2021				2020
Revenue channel:
Department of Veterans Affairs and Department of Defense		55.5	%			61.9	%
National Health Service		25.8	%			32.0	%

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- Definition

Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

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