XML 47 R36.htm IDEA: XBRL DOCUMENT v3.7.0.1

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Jun. 30, 2017
90-120 days
Accounts receivable collection	17.00%
121-150 days
Accounts receivable collection	31.00%
151-180 days
Accounts receivable collection	8.00%
181-210 days
Accounts receivable collection	54.00%
181-210 days
Accounts receivable collection	100.00%

X

- References

No definition available.

+ Details

Name:	gure_AccountsReceivableCollectionRate
Namespace Prefix:	gure_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gure_PastDuePeriod1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gure_PastDuePeriod2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gure_PastDuePeriod3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gure_PastDuePeriod4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gure_PastDuePeriod5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: