Minimum amount of future equity investment obligation.

No definition available.

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Namespace Prefix:	ards_
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Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for investment in joint venture. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of license contributed to joint venture at carrying amount, accounted as equity method investment.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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-Paragraph 1
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

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-SubTopic 10
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-Paragraph 2
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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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Data Type:	xbrli:stringItemType
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- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ards_ShenzenArimabBiopharmaceuticalsCoLtdMember
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Balance Type:
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- Details

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Period Type:

Equity Method Investment (Details) - USD ($)	12 Months Ended
Equity Method Investment (Details) - USD ($)	Dec. 31, 2018	Aug. 06, 2018	Feb. 11, 2018
Equity Method Investment
Contributions owed to the joint venture	$ 1,000,000
Loss from equity method investment	40,000
Equity method investment	960,000
SABC
Equity Method Investment
Contribution obligated			$ 1,000,000
Percentage of ownership interest			49.00%
Carryover basis of license contributed	$ 0
Hepalink \| SABC
Equity Method Investment
Contribution obligated		$ 7,200,000
Percentage of ownership interest		51.00%
Minimum amount obligated to make an additional equity investment at first future financing		$ 10,800,000