CONSOLIDATED STATEMENTS OF OPERATIONS AND OTHER COMPREHENSIVE INCOME $ / shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2017 USD ($) $ / shares shares		Sep. 30, 2016 USD ($) $ / shares shares		Sep. 30, 2015 USD ($) $ / shares shares
Income Statement [Abstract]
Interest income and fees	$ 75,092		$ 81,251		$ 76,627
Interest expense	10,643		11,613		11,386
Net interest income before provision for credit losses	64,449		69,638		65,241
Provision for credit losses	35,140		31,128		25,185
Net interest income	29,309		38,510		40,056
Total non-interest (loss)/income, net	(302)		448		298
Non-interest expense
Management and record keeping services	24,033		28,684		21,848
Other operating expenses	4,333		4,445		9,315
Total non-interest expense	28,366		33,129		31,163
Income before income taxes	641		5,829		9,191
Provision for income taxes	230		2,011		3,702
Net income and other comprehensive income	$ 411		$ 3,818		$ 5,489
Net (loss)/income per share, basic and diluted (in dollars per share) | $ / shares	$ 411	[1]	$ 3,818	[1]	$ 5,489	[1]
Common stock, share outstanding | shares	1		1		1

[1] Number of shares outstanding is one.