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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
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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

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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