Redeemable Convertible Preferred Stock (Details)							3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 20, 2016 shares	Jun. 03, 2016 USD ($) $ / shares	Apr. 08, 2016 USD ($) $ / shares shares	Apr. 07, 2016 USD ($) $ / shares	Aug. 03, 2015	Jun. 13, 2013 $ / shares shares	Jun. 30, 2016 USD ($) $ / shares	Jun. 30, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares
Class of Stock [Line Items]
Amount reclassified to Series B from APIC to adjust redemption value								$ (1,493,000)	$ (8,971,000)
Shares of common stock issued upon conversion of preferred stock | shares			1,505,560
Exercise price of warrants | $ / shares							$ 5.87	$ 5.87	$ 8.19
Value of shares transferred under agreement								$ 1,545,000
Reverse stock split, description							1-for-50 (1:50) reverse stock split of its common stock, par value $0.01 per share
Conversion ratio of reverse stock split					50
Dividends payable							$ 970,000	970,000
Common Stock Issuance Agreement [Member]
Class of Stock [Line Items]
Trigger price per share for requirement to issue additional shares of common stock | $ / shares		$ 2.35	$ 4.05
Shares issued per agreements | shares			853,465
Exercise price of warrants | $ / shares			$ 4.05	$ 7.00
Cash payments in respect of accrued dividends			$ 2,200,000
Warrant expiration date			Mar. 31, 2021	Jun. 26, 2018
Gross proceeds benchmark for expiration of obligation to issue shares							10,000,000
Future shares of common stock approved to be issued per agreement | shares	1,037,053
Securities Purchase Agreement [Member]
Class of Stock [Line Items]
Exercise price of warrants | $ / shares		2.25
Combined per share purchase price of shares and warrants issued | $ / shares		$ 2.35
Proceeds from issuance of common stock and warrants		$ 5,000,000
Dilutive Financing Derivative Liability [Member]
Class of Stock [Line Items]
Creation of dilutive financing derivative								1,067,000
Gain (loss) on remeasurement of conversion feature								634,000
Change in fair value of derivative liabilities							$ 600,000	$ 600,000
Series B Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized | shares						9,357,935
Preferred Stock, initial stated value per share | $ / shares						$ 1.40
Preferred Stock, par value per share | $ / shares						$ 0.01
Number of shares of common stock for which each Series B share can be converted				0.20
Preferred Stock dividend rate						10.00%
Trigger price per share for redemption and conversion features of derivative | $ / shares						$ 7.00
Amount reclassified to Series B from APIC to adjust redemption value				$ 1,868,000
Number of shares converted | shares			7,527,853