Annual report pursuant to Section 13 and 15(d)

Notes Payable (NFS Forgivable Loans) (Details)

v3.3.1.900
Notes Payable (NFS Forgivable Loans) (Details)
12 Months Ended
Nov. 04, 2011
USD ($)
installment
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2009
Revolving Credit Facility          
Debt Instrument [Line Items]          
Amount outstanding   $ 0 $ 0    
NFS Forgivable Loans          
Debt Instrument [Line Items]          
Term 7 years        
Loans payable $ 15,000,000        
Effective percentage 6.00%        
Effective percentage, maximum 11.00%        
Number of installments | installment 7        
Frequency of periodic payment yearly        
Annual installment $ 2,143,000        
Forgiveness, principal   2,143,000 2,143,000 $ 2,143,000  
Forgiveness, interest   525,000 652,000 787,000  
Secured loan securities value   42,514,000      
NFS Forgivable Loans, Amended          
Debt Instrument [Line Items]          
Loans payable $ 7,143,000        
Effective percentage         2.00%
Forgiveness, principal   1,786,000 1,786,000 1,786,000  
Forgiveness, interest   94,000 $ 187,000 $ 280,000  
Number of installments | installment 4        
Frost Gamma Investment Trust | Revolving Credit Facility          
Debt Instrument [Line Items]          
Amount outstanding   $ 40,000,000