Annual report pursuant to Section 13 and 15(d)

Debt and Interest (Detail)

v3.3.1.900
Debt and Interest (Detail) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Debt [Line Items]      
Total notes payable, long-term   $ 24,009 $ 14,009
Less: Discount of notes payable   835 6
Total notes payable, long-term, net   23,174 14,003
IDB Note [Member]      
Debt [Line Items]      
Total notes payable, long-term   $ 14,009 14,009
Interest Rate   2.25%  
Maturity Date   Feb - 2017  
NSC Note [Member]      
Debt [Line Items]      
Total notes payable, long-term   $ 10,000 $ 0
Interest Rate   8.00%  
Maturity Date 36 Months Mar - 2018