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)
 6 Months Ended
Jun. 30, 2016
USD ($)
Rate
Jul. 31, 2016
Dec. 31, 2015
USD ($)
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%      
Maximum total funded debt to EBITDA ratio 2.0      
Minimum debt service coverage ratio 1.5      
As of the end of each fiscal quarter ending on or before June 30, 2016 | Subsequent Event        
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 | Subsequent Event        
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 | Subsequent Event        
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 $ 11,429,000   $ 14,285,000  
Weighted average interest rate 2.38%      
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 $ 14,200,000   $ 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%