SHAREHOLDERS' EQUITY (Details 2) - Restricted stock - shares	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Changes in number of shares outstanding
Outstanding at beginning of the year (in shares)	666,775	672,875	648,225
Issued (in shares)	147,500	141,050	142,950
Cancelled (in shares)	0	(16,850)	0
Vested (in shares)	(124,900)	(130,300)	(118,300)
Outstanding at the end of the year (in shares)	689,375	666,775	672,875