INCOME TAXES (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| INCOME TAXES [Abstract] | ||||
| Gross liability related to uncertain tax positions | $ 72 | $ 72 | ||
| Impact of recognizing the unrecognized tax benefit | 105 | 105 | ||
| Accrued interest on income taxes | 50 | $ 46 | 50 | $ 46 |
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| Excess tax benefits and deficiencies | 11,808 | $ 10,982 | 18,623 | $ 17,234 |
| New Accounting Pronouncement, Early Adoption, Effect [Member] | Restatement Adjustment [Member] | ||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||
| Excess tax benefits and deficiencies | $ (400) | $ (400) | ||