Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ (10,292)	$ 8,934
Adjustments to reconcile net (loss) income to net cash provided by operating activities
Change in fair value of warrant liability	11,194	(5,865)
Depreciation and amortization	758	582
Amortization of forgivable loans to registered representatives	310	362
Stock-based compensation	676	183
Recovery for doubtful accounts	(46)	(256)
Amortization of deferred clearing credit	(105)	(104)
Increase in fair value of contingent consideration payable	10	14
Deferred tax expense	2,413	714
Gain on disposal of Gilman branches	0	(130)
Gain on deconsolidation of subsidiary	(15)	0
Changes in assets and liabilities
Restricted cash	(2)	0
Cash deposits with clearing organizations	205	(10)
Securities owned, at fair value	(374)	(1,049)
Receivables from broker-dealers and clearing organizations	141	544
Forgivable loans receivable	(292)	(47)
Other receivables, net	(854)	196
Prepaid expenses	809	(149)
Other assets, principally refundable deposits	(85)	(5)
Accounts payable, accrued expenses and other liabilities	(288)	(720)
Securities sold, but not yet purchased, at fair value	(143)	(221)
Net cash provided by operating activities	4,020	2,973
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of businesses	(187)	(19)
Acquisition of intangible assets	(45)	0
Purchase of fixed assets	(50)	(312)
Collection on notes receivable	47	8
Net cash used in investing activities	(235)	(323)
CASH FLOWS FROM FINANCING ACTIVITIES
Repurchase of common stock for tax withholding	(82)	0
Net cash used in financing activities	(82)	0
NET INCREASE IN CASH	3,703	2,650
CASH BALANCE
Beginning of the period	23,508	21,694
End of the period	27,211	24,344
Cash paid during the period for:
Interest	5	8
Income taxes	630	576
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING AND FINANCING ACTIVITIES
Fixed assets (acquired but not paid)	0	42
Business acquired:
Identifiable intangible assets acquired	767	211
Contingent consideration payable	(580)	(192)
Sale of Gilman branches:
Notes receivable (included in other receivables)	0	638
Disposal of goodwill	0	(305)
Disposal of intangible assets, net	0	(203)
Reclassification of warrant liability from debt to equity	$ 16,791	$ 0