Stock Incentive Plans (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2007	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Stock Incentive Plans (Textual)
Stock compensation expense		$ 6,000	$ 8,000	$ 19,000	$ 38,000
Unrecognized compensation cost		38,000		$ 38,000				$ 66,000
Stock-based plan expect to recognize weighted-average period				1 year 2 months 30 days
Stock compensation expense related to restricted stock		$ 2,000	$ 49,000	$ 7,000	$ 110,000
Common stock reserved for future issuance of awards		330,386		330,386
Plan termination date				Mar. 17, 2026
Stock option intrinsic value		$ 85,655		$ 85,655
Stock options exercisable or outstanding		$ 29,500		$ 29,500
Stock options forfeited rate percentage				28.99%
Restricted stock units, description				For the three and nine months ended September 30, 2019, the Company recorded $0 and $7,000, respectively, of RSU expense. For the three months and nine months ended September 30, 2018, the Company recorded $50,000 and $256,000, respectively, of RSU expense. As of September 30, 2019, there was no compensation cost related to the non-vested RSUs remaining.
Outstanding non-vested restricted stock				0		2,454
Closing price, description				At the time the negotiation of the terms of the employment agreement began, the closing price of the common stock was $5.50. On the date of grant, the closing price of the common stock was $6.30.
Weighted average period of compensation cost related to non-vested stock option awards granted					1 year
Restricted common stock issued to directors					1,878
2007 Plan [Member]
Stock Incentive Plans (Textual)
Common stock reserved for future issuance of awards		280,386		280,386
2007 Plan [Member]
Stock Incentive Plans (Textual)
Maximum number of shares awarded or sold	440,769
Plan termination date	Jun. 24, 2016
Restricted Stock Units (RSUs) [Member] | Key Executive [Member]
Stock Incentive Plans (Textual)
Number of restricted stock units granted						30,902	59,098
Restricted Stock [Member]
Stock Incentive Plans (Textual)
Restricted stock units, description					From January 1, 2018, to the 2018 Annual Meeting of Stockholders, the directors in the aggregate earned $15,000 in stock, which was equal to 1,878 shares of restricted common stock. Thereafter, at every Annual Meeting, beginning in 2018, non-employee directors receive $10,000 in RSUs which vest on the day immediately preceding the next following Annual Meeting of Stockholders.