Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 60,515	$ 75,908
Accounts receivable, prepaid expenses, and other current assets	1,586	1,394
Total current assets	62,101	77,302
Property and equipment, net	693	576
Other assets	230	347
Total	63,024	78,225
Current liabilities:
Current portion of loan payable	7,832	7,652
Accounts payable	2,190	2,226
Accrued expenses	5,559	6,459
Total current liabilities	15,581	16,337
Long-term liabilities:
Loan payable, net of current portion	10,687	12,672
Other long-term liabilities	773	473
Total long-term liabilities	$ 11,460	$ 13,145
Commitments
Stockholders’ equity:
Preferred stock $0.01 par value; 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.0001 par value; 120,000,000 shares authorized, 27,363,965 and 27,346,780 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 3	$ 3
Additional paid-in capital	210,897	210,115
Accumulated deficit	(174,917)	(161,375)
Total stockholders’ equity	35,983	48,743
Total	$ 63,024	$ 78,225

Accounts receivable prepaid expense and other current assets.

No definition available.

Name:	ceru_AccountsReceivablePrepaidExpenseAndOtherCurrentAssets
Namespace Prefix:	ceru_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).