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Inventories (Narrative) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Inventories [Abstract]
Silver inventory	$ 380,347	$ 461,272

The value of silver in out inventory as raw materials, work in process or as plated surface on finished goods

No definition available.

Name:	micr_SilverInventory
Namespace Prefix:	micr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	us-gaap_InventoryDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration