Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE - Schedule of Carrying Value and Fair Value of Financial Liabilities (Details)

v3.5.0.2
FAIR VALUE - Schedule of Carrying Value and Fair Value of Financial Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Mar. 31, 2016
Convertible subordinated debt    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Carrying Value $ 69,483 $ 69,253
Long-term debt    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Carrying Value 60,250 65,709
Level 2 fair value measurements | Convertible subordinated debt    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Fair Value 66,333 51,686
Level 2 fair value measurements | Long-term debt    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Fair Value $ 60,247 $ 65,741