INCOME TAX (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Mar. 31, 2018
Description of New Tax Rate on Certain Off-Shore Earnings			The Tax Act imposes a one-time transition tax on deemed repatriation of historical earnings of foreign subsidiaries, and future foreign earnings are subject to U.S. taxation. The change has caused the Company to record a one-time income tax payable to be paid over 8 years. The one-time transition tax was calculated using the Company’s total post-1986 overseas earnings and profits based on a rate of 15.5% for the Company’s cash and cash equivalents and a rate of 8% for its other assets.
Income Tax Expense (Benefit)	$ 1,463,000	$ 0	$ 1,829,000	$ 0	$ 1,400,000
Accrued Income Taxes					$ 1,400,000
Deferred Tax Liabilities, Gross	$ 1,892,000		$ 1,892,000