SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
Dec. 31, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Number of days for standard payment	60 days

Refers to Company's standard payment term in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days, from invoice date.

No definition available.

Name:	amhi_NumberOfDaysForStandardPayment
Namespace Prefix:	amhi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration