SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2015 USD ($) Segment	Dec. 31, 2014 USD ($)	Sep. 30, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	3
Segment data [Abstract]
Interest income	$ 18,275	$ 14,232
Interest expense	720	661
Net interest income (expense)	17,555	13,571
Provision (recovery) for loan losses	786	48
Non-interest income	16,834	12,674
Non-interest expense	30,008	22,413
Income (loss) before tax	3,595	3,784
Total assets	2,960,234	2,108,063	$ 2,529,705
Total deposits	2,569,043	1,788,879	$ 1,657,534
Reportable Segments [Member] | Banking [Member]
Segment data [Abstract]
Interest income	8,851	6,941
Interest expense	253	279
Net interest income (expense)	8,598	6,662
Provision (recovery) for loan losses	706	48
Non-interest income	1,056	579
Non-interest expense	5,428	5,263
Income (loss) before tax	3,520	1,930
Total assets	735,222	599,027
Total deposits	227,260	234,765
Reportable Segments [Member] | Payments [Member]
Segment data [Abstract]
Interest income	1,964	1,567
Interest expense	40	45
Net interest income (expense)	1,924	1,522
Provision (recovery) for loan losses	80	0
Non-interest income	15,352	13,052
Non-interest expense	16,017	11,673
Income (loss) before tax	1,179	2,901
Total assets	51,359	41,096
Total deposits	2,341,783	1,554,114
Reportable Segments [Member] | Corporate Services/Other [Member]
Segment data [Abstract]
Interest income	7,460	5,724
Interest expense	427	337
Net interest income (expense)	7,033	5,387
Provision (recovery) for loan losses	0	0
Non-interest income	426	(957)
Non-interest expense	8,563	5,477
Income (loss) before tax	(1,104)	(1,047)
Total assets	2,173,653	1,467,940
Total deposits	$ 0	$ 0