Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Non- controlling Interest
Beginning balance (in shares) at Sep. 30, 2015		12,467,515
Beginning balance at Sep. 30, 2015	$ 45,262	$ 249	$ 80,282	$ (35,284)	$ 15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock – based compensation for stock options	202		202
Issuance of shares of common stock and related stock-based compensation for restricted stock units (in shares)		4,334
Issuance of shares of common stock and related stock-based compensation for restricted stock units	9		9
Stock repurchase (in shares)		(33,933)
Stock repurchase	(86)	$ (1)	(85)
Warrants issuable as dividend to stockholders	(14,055)		(14,055)
Warrant liability reclassification ( See Note 19)	0
Net (loss) income	(5,559)			(5,559)
Ending balance (in shares) at Sep. 30, 2016		12,437,916
Ending balance at Sep. 30, 2016	25,773	$ 248	66,353	(40,843)	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock – based compensation for stock options	602		602
Warrant liability reclassification ( See Note 19)	0
Net (loss) income	12,528			12,528
Ending balance (in shares) at Sep. 30, 2017		12,437,916
Ending balance at Sep. 30, 2017	38,903	$ 248	66,955	(28,315)	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock – based compensation for restricted stock units	2,913		2,913
Issuance of shares of common stock for warrant exercises (in shares)		1,489
Issuance of shares of common stock for warrant exercises	5		5
Issuance of shares of common stock with respect to vested restricted stock units, net of 48,140 shares valued at $152,000 tendered for tax withholding (in shares)		102,485
Issuance of shares of common stock with respect to vested restricted stock units, net of 48,140 shares valued at $152,000 tendered for tax withholding	(152)	$ 2	(154)
Warrant liability reclassification ( See Note 19)	16,791		16,791
Deconsolidation of subsidiary	(15)				(15)
Net (loss) income	(11,510)			(11,510)
Ending balance (in shares) at Sep. 30, 2018		12,541,890
Ending balance at Sep. 30, 2018	$ 46,935	$ 250	$ 86,510	$ (39,825)	$ 0