XML 71 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8
Commitments and Contingencies - Additional Information (Detail) (USD $)
 1 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 1 Months Ended
Jul. 31, 2006
Claim
Jun. 30, 2013
Dec. 31, 2012
Sep. 30, 2010
Caliper Life Sciences, Inc [Member]
sqft
Jun. 30, 2013
Caliper Life Sciences, Inc [Member]
Jan. 31, 2011
Stem Cell Sciences (U.K.) Ltd [Member]
sqft
Jun. 30, 2013
Stem Cell Sciences (U.K.) Ltd [Member]
Dec. 31, 2010
BMR-Gateway Boulevard LLC [Member]
sqft
Jun. 30, 2013
BMR-Gateway Boulevard LLC [Member]
Dec. 31, 2012
BMR-Gateway Boulevard LLC [Member]
Mar. 31, 2013
Prologis, L.P [Member]
sqft
Jun. 30, 2013
Prologis, L.P [Member]
Commitment And Contingencies [Line Items]                        
Proceeds from the issuance of industrial revenue bonds   $ 5,000,000                    
Interest rate for remaining bond series   9.50%                    
Outstanding principal   231,000 331,000                  
Period of maturity   2014-08                    
Square feet area of office and lab space under lease       13,200       43,000     18,700  
Term of lease   15 years   2 years       11 years 6 months     10 years  
Rent over term of lease   1,165,000   1,081,000       17,869,000     3,497,000  
Lease term expires   Jun. 30, 2013     Sep. 30, 2013              
Deferred rent under sublease agreement   28,050             1,420,000 1,389,000   361,000
Area of leased space           5,000            
Area of lease reduced           1,900            
Rental payments under the existing lease           60,000            
Number of patients violate claims of Neuralstem's activities 4                      
Annual payments             50,000          
Litigation costs             700,000          
Useful life             14 years          
Royalty payments             600,000          
Reducing lieu of cash payments   50,000                    
Payments creditable against royalties   $ 50,000