Capitalization and Equity Structure (Details Textual) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended	9 Months Ended		12 Months Ended
	Oct. 30, 2016 USD ($) $ / shares shares	Aug. 31, 2016 shares	Aug. 12, 2016 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) $ / shares shares
Class of Stock [Line Items]
Common Stock, Shares Authorized				71,429,000	71,429,000		71,429,000
Preferred Stock, Shares Authorized				10,000,000	10,000,000		10,000,000
Common Stock, Shares, Issued				21,393,000	21,393,000		15,027,000
Preferred Stock, Shares Outstanding		3,000		0	0		13,000
Stock Issued During Period, Shares, New Issues							15,000
Fair Value Adjustment of Warrants | $				$ 1,620	$ 3,030
Warrants Not Settleable in Cash, Fair Value Disclosure | $							$ 9,195
Conversion of Stock, Shares Converted		921,000		1,000	10,000
Conversion of Stock, Shares Issued		267		60,000	1,389,000
Preferred Stock Convertible Conversion Price				7.07	7.07
Proceeds from Issuance of Common Stock | $					$ 14,694	$ 0
Stockholders' Equity, Reverse Stock Split					1-for-7 reverse split
Subsequent Event [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	488,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 3.74
Proceeds from Issuance of Common Stock | $	$ 1,825
Class of Warrant or Right, Number Of Warrants Exercised	488,000
Over-Allotment Option [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues			267,000
Proceeds from Issuance of Common Stock | $			$ 998
2016 Equity Offering [Member]
Class of Stock [Line Items]
Conversion of Stock, Shares Issued			267				141
2016 Equity Offering [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues			3,750,000
Sale of Stock, Price Per Share | $ / shares			$ 4.00
Proceeds from Issuance of Common Stock | $			$ 13,696
Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							2,122,000
Warrants Term							5 years
Warrant [Member] | Minimum [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 3.74
Warrant [Member] | Maximum [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 8.75
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							2,122,000
Gross Proceeds from Preferred Stock and Warrants | $							$ 15,000
Conversion of Stock, Shares Converted				3,000	3,000
Conversion of Stock, Shares Issued				921,000	921,000
Preferred Stock Convertible Conversion Price				3.74	3.74
Series A Preferred Stock [Member] | Minimum [Member]
Class of Stock [Line Items]
Preferred Stock Convertible Conversion Price		3.74
Series A Preferred Stock [Member] | Maximum [Member]
Class of Stock [Line Items]
Preferred Stock Convertible Conversion Price		7.07
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Amortization of Financing Costs and Discounts, Total | $				$ 3,016	$ 10,345