Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Carrying Value and Fair Value of Financial Liabilities (Details)

v3.7.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Carrying Value and Fair Value of Financial Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Carrying Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt $ 65,028 $ 65,709
Level 2 fair value measurement | Fair Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 68,516 65,741
Convertible subordinated debt | Carrying Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 62,827 69,253
Convertible subordinated debt | Level 2 fair value measurement | Fair Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 60,667 51,686
Credit agreement | Carrying Value | Credit agreement with Wells Fargo    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 0 65,709
Credit agreement | Carrying Value | Revolving credit agreement | Revolving credit agreement    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 16,852 0
Credit agreement | Level 2 fair value measurement | Fair Value | Credit agreement with Wells Fargo    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 0 65,741
Credit agreement | Level 2 fair value measurement | Fair Value | Revolving credit agreement | Revolving credit agreement    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 18,490 0
Term loan agreement | Carrying Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt 48,176 0
Term loan agreement | Level 2 fair value measurement | Fair Value    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total long-term debt $ 50,026 $ 0