Name:	gtwn_FinancingReceivableModificationsAdditionalFundsAdvancedToTheBorrower
Namespace Prefix:	gtwn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of additional funds to complete the project and allow time for the sale of the property.

No definition available.

Name:	gtwn_FinancingReceivableModificationsAdditionalFundsToCompleteProject
Namespace Prefix:	gtwn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of loan loss recovery attributable to refinancing of the first mortgage.

No definition available.

Name:	gtwn_FinancingReceivableModificationsLoanLossRecovery
Namespace Prefix:	gtwn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Commitments to lend additional funds to borrowers with modified loans.

No definition available.

Name:	gtwn_FinancingReceivablesCommitmentsToLendAdditionalFundsToBorrowersWithModifiedLoans
Namespace Prefix:	gtwn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953682-111524