Quarterly report pursuant to Section 13 or 15(d)

Term Loan Agreements and Long Term Debt - MidCap Term Loan and Revolving Loan Agreement - Narrative (Details)

v3.8.0.1
Term Loan Agreements and Long Term Debt - MidCap Term Loan and Revolving Loan Agreement - Narrative (Details)
$ in Millions
Oct. 25, 2016
USD ($)
item
Mar. 31, 2018
USD ($)
MidCap Term Loan Agreement    
Debt Instrument [Line Items]    
Number of months requiring principal and interest payments | item 30  
Annual agency fee, percent of aggregate principal amount 0.25%  
Prepayment fee percent, year one 3.00%  
Prepayment fee percent, year two 2.00%  
Prepayment fee percent, thereafter 1.00%  
Exit fee percent 5.00%  
Amount outstanding   $ 21.0
MidCap Revolving Loan Agreement    
Debt Instrument [Line Items]    
Percent of Borrowing Base which accrues interest 30.00%  
Possible increase to loan agreement at Company's request $ 15.0  
Borrowing amount available   $ 7.9
Collateral management fee, percent 0.50%  
Unused line fee, percent 0.50%