Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Additional Information (Detail)

v3.3.1.900
Fair Value Measurements - Additional Information (Detail) - USD ($)
 1 Months Ended 5 Months Ended 12 Months Ended
Oct. 31, 2015
Oct. 30, 2015
Sep. 30, 2014
Aug. 31, 2014
Apr. 18, 2014
Mar. 17, 2014
Aug. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Trading Securities                 $ 20,002,000  
Equity Method Investments           $ 250,000   $ 250,000 250,000  
Equity Method Investment, Ownership Percentage           35.00%        
Short-term Investments, Total         $ 243,000          
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases                 3,218,000  
Proceeds from Issuance Initial Public Offering               $ 57,817,000 $ 0 $ 0
Fair Value Assumptions, Exercise Price                 $ 11.50  
Fair Value Assumptions, Risk Free Interest Rate               0.10%    
Fair Value Assumptions, Expected Volatility Rate               9.30%    
Share Price               $ 2.93    
Fair Value Assumptions, Weighted Average Volatility Rate               25.60%    
Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease), Total               $ 1,200,000    
Investment Owned, at Fair Value               2,200,000 $ 3,900,000  
Fair Value Adjustment of Warrants               $ 438,000 $ 0 $ 0
Business Acquisition, Percentage of Voting Interests Acquired               18.45%    
Working Capital               $ 500,000    
Working Capital Committed               200,000    
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)     $ 293,000              
Warrants Issued   139,592                
Value of Warrants Issued   $ 600,000         $ 200,000      
Common Stock Subject to Mandatory Redemption [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Net Assets               $ 42,600,000    
Warrant [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Share Price               $ 9.29    
Non Redeemable warrants [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               0.30    
Non Redeemable warrants [Member] | Warrant [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               0.17    
Redeemable warrants [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               0.18    
Redeemable warrants [Member] | Warrant [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               $ 0.16    
NSE Note [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Warrant Expiration Period               10 years    
Fair Value Adjustment of Warrants $ 3,000,000                  
Binomial Lattice Model [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Fair Value Assumptions, Exercise Price               $ 11.50    
Fair Value Assumptions, Risk Free Interest Rate               1.68%    
Fair Value Assumptions, Expected Volatility Rate               25.60%    
Fair Value Assumptions, Weighted Average Volatility Rate               20.70%    
Binomial Lattice Model [Member] | Warrant [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               $ 0.88    
Ghaidarov Model [Member] | Warrant [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               $ 0.89    
Pharmaceutical Preparation 325412 [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Warrant Rights                 265,000  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares     1,100,000              
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned     $ 25,000              
Proceeds from Issuance Initial Public Offering                 $ 42,900,000  
Business Acquisition, Share Price                 $ 10.00  
Expiration Period Of Warrants                 five years  
Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease), Total               $ 1,700,000    
US Treasury Securities [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Trading Securities                 $ 19,998,000  
Private Units [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               $ 1.70    
Private Units [Member] | Ghaidarov Model [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Share Price               2.99    
Insider Shares [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Business Acquisition, Share Price               $ 1.67 $ 0.18  
Argus Neurooptics Llc [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases       $ 50,000            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net, Total     $ 293,000   $ 293,000          
Argus Neurooptics Llc [Member] | Class A Preferred Stock [Member]                    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                    
Shares Received Under Purchase Agreement           $ 13,409,962        
Percentage Of Shares Received Under Purchase Agreement           83.00%        
Preferred Units, Issued           16,091,954