Quarterly report pursuant to Section 13 or 15(d)

Credit Facility (Details)

v3.7.0.1
Credit Facility (Details) - Credit Facility
6 Months Ended
Jun. 30, 2017
USD ($)
item
Jan. 04, 2013
USD ($)
Credit Facility    
Maximum borrowing capacity   $ 10,000,000
Number of payments | item 1  
Total liabilities to tangible net worth ratio, maximum 2.50  
Interest coverage ratio, minimum 2.00  
Borrowings outstanding $ 0  
Index    
Credit Facility    
Interest rate margin (as a percent) 1.50%