Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.2.0.727
Subsequent Events - Additional Information (Detail) - Jun. 30, 2015 - Subsequent Event [Member] - USD ($)
Total
Total
Schedule of Share Repurchase Plan [Line Items]    
Tender offer to purchase common stock price per share $ 3.25  
Percentage of outstanding common shares purchased under tender offer 7.76%  
Tender offer sales price $ 2.29  
Maximum [Member]    
Schedule of Share Repurchase Plan [Line Items]    
Tender offer to purchase common stock shares 750,000  
Percentage of additional number of shares to be purchased over outstanding shares 2.00%  
Asset Purchase Agreement [Member]    
Schedule of Share Repurchase Plan [Line Items]    
Initial payment   $ 1,100,000
Cash paid as disbursement of funds   861,783
Asset Purchase Agreement [Member] | CytoMedical [Member]    
Schedule of Share Repurchase Plan [Line Items]    
Contingent payment $ 1,300,000 1,300,000
Promissory note amount $ 1,300,000 $ 1,300,000