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Concentrations (Details)	Sep. 30, 2020	Dec. 31, 2019
Concentrations (Textual)
Trade accounts receivable	27.00%	84.00%

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- References

No definition available.

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Namespace Prefix:	coms_
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Balance Type:	na
Period Type:	duration

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- Definition

Trade accounts receivable.

+ References

No definition available.

+ Details

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Namespace Prefix:	coms_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant