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QUARTERLY FINANCIAL DATA (UNAUDITED) (Detail Textual) - USD ($) | 3 Months Ended
--- | ---
Jun. 30, 2018 | Mar. 31, 2018
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results | $ 543,000 | $ 2,067,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share | $ 0.01 | $ 0.04
Foundation grants [Member] |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 543,000 | $ 2,067,000

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