Adjustment to purchase price of acquisition.

No definition available.

Name:	crhm_AdjustmentToPurchasePriceOfAcquisition
Namespace Prefix:	crhm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Business combination deferred acquisition costs.

+ References

No definition available.

+ Details

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Namespace Prefix:	crhm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business combination, loan contribution description.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Options to acquire additional interest percent.

+ References

No definition available.

+ Details

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- Definition

Percentage of working capital paid for acquisition of remaining ownership interest.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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Period Type:	instant

- Definition

This element represents a description of how the entity obtained control of the acquired entity.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

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

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- Details

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Asset acquisitions - Additional Information (Detail)				3 Months Ended	12 Months Ended
Asset acquisitions - Additional Information (Detail)	Nov. 01, 2019 USD ($)	Aug. 31, 2019 USD ($)	Apr. 03, 2019 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) Acquisition	Dec. 31, 2018 USD ($) Acquisition	Oct. 30, 2019	Aug. 30, 2019	Apr. 02, 2019
Business Acquisition [Line Items]
Number of asset acquisitions completed \| Acquisition					5	5
Asset acquired control, description					The Company has obtained control over the acquired assets via the Company’s majority ownership in the shares of the entities and its agreements with the non-controlling interest shareholders.
Ownership interest acquired					100.00%
Business combination loan contribution description					For those asset acquisitions where CRH ownership interest is less than 100%, in conjunction with the acquisition, both the Company and the non-controlling interest shareholder contributed loans. The terms of the loans are such that they will be repaid first, prior to any future distributions and are non-interest bearing.
Total cash consideration					$ 15,052,058	$ 27,509,811
Deferred asset acquisition costs					59,249	$ 116,025
Purchase adjustment relating to anesthesia service providers acquired in prior periods					4,366,000
Gain from equity investments					$ 1,766,968
Arapahoe [Member]
Business Acquisition [Line Items]
Ownership interest acquired			49.00%						51.00%
Total cash consideration			$ 2,300,000
Percentage of working capital paid for acquisition of remaining ownership interest			49.00%
Deferred asset acquisition costs			$ 26,086
CCAA [Member]
Business Acquisition [Line Items]
Ownership interest acquired		49.00%						51.00%
Total cash consideration		$ 7,000,000
Percentage of working capital paid for acquisition of remaining ownership interest		49.00%
Deferred asset acquisition costs		$ 18,658
Lake Washington Anesthesia LLC [Member]
Business Acquisition [Line Items]
Purchase adjustment relating to anesthesia service providers acquired in prior periods				$ 4,366,000
TSA [Member]
Business Acquisition [Line Items]
Options to acquire additional interest percent	36.00%
Percentage of equity interest							15.00%
Gain from equity investments	$ 1,318,769