Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
 3 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended 0 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2011
May 24, 2012
Dec. 31, 2013
Preferred Stock Purchase Rights Under Stockholder Rights Plan
Initial
Minimum
Feb. 28, 2014
Subsequent Event
Mar. 04, 2014
Subsequent Event
Jan. 17, 2014
Subsequent Event
Feb. 28, 2014
Subsequent Event
Stock Dividends
Mar. 04, 2014
Subsequent Event
Comerica Bank
Dec. 31, 2013
Subsequent Event
Preferred Stock Purchase Rights Under Stockholder Rights Plan
Minimum
Feb. 10, 2014
Subsequent Event
February 2014 Subscription Agreement
Dec. 19, 2013
Oracle Group
Sep. 23, 2013
Oracle Group
Dec. 31, 2013
Oracle Group
Subsequent Event [Line Items]                                    
Single person ownership percentage that triggers preferred stock rights               15.00%           20.00%        
Issuance of stock, net, shares                             1,945,525   340,000  
Common stock issued, price per share                             $ 2.57 $ 1.80    
Proceeds from equity offering, gross                             $ 5,000,000 $ 612,000    
Proceeds from equity offering, net of expenses         5,201,000 17,223,000                 4,800,000 578,000    
Cost associated with transaction                             208,000 34,000    
Maximum stock offering price                     12,500,000              
Lines of credit maximum borrowing capacity             8,000,000     5,000,000                
Credit Agreements amendment fee                         $ 10,000          
Stock dividend policy adopted                 2.00%                  
Special stock dividends declared 0.50% 0.50% 0.50% 0.50%               0.50%            
Dividends declared, date of record                       Mar. 14, 2014            
Dividend payable date                       Mar. 28, 2014            
Oracle Partners L.P.'s Ownership Percentage                                   16.00%