Related party rent expense.

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Related party transaction agreement date.

+ References

No definition available.

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Amount of accrued but unpaid interest on deposit liabilities.

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- Definition

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

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- Definition

Date of maturity or expiration of arrangements with a related party (for example, but not limited to, leasing and debt arrangements between related parties), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

A description of the related party transaction, including transactions to which no amounts or nominal amounts were ascribed and such other information deemed necessary to an understanding of the effects of the transactions on the financial statements. Examples of common related party transactions are, sales, purchases and transfers of realty and personal property, services received or furnished, loans and leases to and from top management and affiliates.

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- 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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- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

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Period Type:	instant

- Details

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Related Party Transactions - Additional Information (Detail) - USD ($)			3 Months Ended		5 Months Ended	9 Months Ended		12 Months Ended
	Dec. 07, 2017	Jan. 12, 2017	Sep. 30, 2018	Sep. 30, 2017	Aug. 08, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Sep. 01, 2017
Related Party Transaction [Line Items]
Related party rent expense			$ 40,000	$ 39,000		$ 120,000	$ 116,000
Related party payable			$ 2,025,000			$ 2,025,000
Conversion of debt								$ 2,756,000
Unsecured Non-convertible Promissory Note [Member] \| Chief Executive Officer and Co-Chairman [Member]
Related Party Transaction [Line Items]
Maturity date					Nov. 01, 2018
Annual interest rate					4.00%
Related party transaction, description						The outstanding principal amount under the Note accrues interest at a rate of four percent (4%) per annum. The Note is due and payable November 1, 2018, but may be pre-paid by the Company without penalty at any time.
Non-convertible promissory note, principal amount					$ 2,000,000
Common Stock [Member]
Related Party Transaction [Line Items]
Promissory note converted to shares								1,575,000
Conversion of debt								$ 2,000
Co-Chairman and Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Related party payable									$ 2,700,000
Maturity date		Sep. 01, 2017
Annual interest rate		3.50%
Related party transaction, description						Between January 12, 2017 and September 1, 2017, to obtain funding for working capital, the Company borrowed a total of $2,700,000 from Dr. Andrey Semechkin, the Company’s Chief Executive Officer and Co-Chairman of the Board of Directors, and issued an unsecured, non-convertible promissory note in the principal amount of $2,700,000 (the “2017 Note”) to Dr. Andrey Semechkin. The principal amount under the 2017 Note accrues interest at a rate of three and a half percent (3.50%) per annum was due and payable September 1, 2017.
Co-Chairman and Chief Executive Officer [Member] \| Note Conversion and Stock Purchase Agreement [Member]
Related Party Transaction [Line Items]
Related party transaction agreement date						Dec. 07, 2017
Issuance price per share	$ 1.75
Conversion of debt	$ 2,700,000
Accrued and unpaid interest on promissory note	56,000
Payment received from related party	$ 500,000
Co-Chairman and Chief Executive Officer [Member] \| Note Conversion and Stock Purchase Agreement [Member] \| Common Stock [Member]
Related Party Transaction [Line Items]
Promissory note converted to shares	1,860,810