General form of registration statement for all companies including face-amount certificate companies

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

Convertible Notes Payable - Additional Information (Detail)

v3.2.0.727

Convertible Notes Payable - Additional Information (Detail) - USD ($)		9 Months Ended		12 Months Ended		25 Months Ended	31 Months Ended	83 Months Ended	91 Months Ended
	Jul. 05, 2011	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Feb. 28, 2011	Dec. 31, 2008	Jan. 31, 2013	Sep. 30, 2013	Apr. 30, 2013	Mar. 31, 2013	Oct. 31, 2012	Sep. 30, 2012
Short-term Debt [Line Items]
Proceeds from convertible debt		$ 750,000	$ 0	$ 0	$ 250,000	$ 275,200	$ 105,000	$ 1,735,000
Convertible preferred stock, value, upon closing of preferred equity financing	$ 750,000			$ 1,000,000				1,000,000
Matured Convertible Notes											$ 50,000	$ 50,000	$ 1,245,000
Percentage of principle balance of notes on conversion price of notes				20.00%
Convertible Notes Payable Related Parties Current								$ 105,000			$ 1,345,000
Related Parties [Member]
Short-term Debt [Line Items]
Convertible notes, total aggregate principal balance										$ 1,880,000
Matured Convertible Notes					$ 50,000				$ 50,000				$ 55,000
Minimum
Short-term Debt [Line Items]
Debt instrument, interest rate, stated percentage								6.00%
Percentage of principle balance of notes on conversion price of notes				6.00%				10.00%	10.00%
Maximum
Short-term Debt [Line Items]
Debt instrument, interest rate, stated percentage								10.00%
Percentage of principle balance of notes on conversion price of notes				10.00%				50.00%	50.00%
Convertible Notes Payable
Short-term Debt [Line Items]
Proceeds from convertible debt	$ 250,000
Debt instrument, interest rate, stated percentage	6.00%

- Definition

The amount for convertible notes payable.

+ References

No definition available.

+ Details

Name:	arth_ConvertibleNotesPayableRelatedPartiesCurrent
Namespace Prefix:	arth_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Convertible preferred stock, value, upon closing of preferred equity financing.

+ References

No definition available.

+ Details

Name:	arth_ConvertiblePreferredStockValueUponClosingOfPreferredEquityFinancing
Namespace Prefix:	arth_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of convertible notes that had matured with related parties.

+ References

No definition available.

+ Details

Name:	arth_MaturedConvertibleNotes
Namespace Prefix:	arth_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of principle balance of notes on conversion price of notes.

+ References

No definition available.

+ Details

Name:	arth_PercentageOfPrincipleBalanceOfNotesOnConversionPriceOfNotes
Namespace Prefix:	arth_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromConvertibleDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=arth_RelatedPartiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_ConvertibleNotesPayableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: