Quarterly report pursuant to Section 13 or 15(d)

Debt and Interest - Long-term debt (Detail)

v3.4.0.3
Debt and Interest - Long-term debt (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Debt [Line Items]      
Total notes payable, long-term $ 21,217   $ 24,009
Less: Discount on notes payable 446   835
Total notes payable, long-term, net 20,751   23,174
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 $ 7,208   $ 10,000
Interest Rate 8.00%    
Maturity Date Mar - 2018 36 months