Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt- Senior Secured Credit Facility - Revolver and Term Loan (Details)

v3.5.0.2
Long-Term Debt- Senior Secured Credit Facility - Revolver and Term Loan (Details)
 9 Months Ended
Sep. 30, 2016
USD ($)
Rate
Dec. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
bank
Line of Credit Facility [Line Items]      
Number of banks | bank     2
Maximum percentage of investment allowed in non-core subsidiaries 49.00%    
Minimum debt service coverage ratio 1.5    
As of the end of each fiscal quarter ending on or before June 30, 2016      
Line of Credit Facility [Line Items]      
Covenant leverage ratio (not to exceed) 2.00    
As of the end of each fiscal quarter ending September 30, 2016, December 31, 2016, March 31, 2017 and June 30, 2017      
Line of Credit Facility [Line Items]      
Covenant leverage ratio (not to exceed) 2.75    
As of the end of each fiscal quarter ending September 30, 2017 and thereafter      
Line of Credit Facility [Line Items]      
Covenant leverage ratio (not to exceed) 2.00    
Term Loan      
Line of Credit Facility [Line Items]      
Current borrowing capacity     $ 17,143,000
Amount outstanding $ 10,000,000 $ 14,285,000  
Weighted average interest rate 2.59%    
Principal payments due in quarterly installments $ 1,429,000    
Revolving Credit Facility      
Line of Credit Facility [Line Items]      
Current borrowing capacity     60,000,000
Additional borrowing capacity     25,000,000
Capacity available in Canadian Dollars, Euros, and Pounds Sterling (up to)     $ 20,000,000
Amount outstanding $ 18,733,000 $ 11,300,000  
Commitment fee | Rate 0.375%    
Interest rate at period end 3.75%    
Revolving Credit Facility | Adjusted Base Rate Applicable Margin Rate | Maximum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 0.50%    
Revolving Credit Facility | Adjusted Base Rate Applicable Margin Rate | Minimum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 0.25%    
Revolving Credit Facility | Federal Funds Rate      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 0.50%    
Revolving Credit Facility | LIBOR      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 1.50%    
Revolving Credit Facility | LIBOR | Maximum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 2.00%    
Revolving Credit Facility | LIBOR | Minimum      
Line of Credit Facility [Line Items]      
Basis spread on variable rate 1.75%