Quarterly report pursuant to Section 13 or 15(d)

The Company - Additional Information (Detail)

v3.5.0.2
The Company - Additional Information (Detail)
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2016
USD ($)
May 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Segment
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Organization And Summary Of Significant Accounting Policies [Line Items]                  
Number of reportable segments | Segment           1      
Revenue from sales taxes     $ 1,500,000   $ 1,200,000 $ 3,700,000 $ 3,000,000    
Liquidity     5,400,000     5,400,000   $ 2,800,000  
Cash and cash equivalents     3,911,000   $ 882,000 3,911,000 882,000 219,000 $ 6,033,000
Additional borrowing capacity under the Revolving Credit Facility     1,500,000     1,500,000   2,600,000  
Issuance of common stock, net of issuance fees   $ 15,200,000   $ 15,200,000   16,192,000 $ 9,525,000    
Issuance of common stock in a private placement $ 1,000,000     $ 1,000,000          
Line of credit facility, maximum borrowing amount     27,000,000     $ 27,000,000      
Line of credit facility, maturity date           2017-10      
Revolving credit facility     25,513,000     $ 25,513,000   22,026,000  
Working capital     40,800,000     40,800,000   $ 25,900,000  
Maximum                  
Organization And Summary Of Significant Accounting Policies [Line Items]                  
Payment required under certain channel distribution agreement upon revenue target achieved     $ 1,000,000     $ 1,000,000