Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Schedule of Stock Option Activity

The following table summarizes the activity for stock options and warrants for the nine months endedSeptember 30, 2019:

	Stock Options							Warrants
	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (In Thousands)		Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (In Thousands)
Outstanding at December 31, 2018	1,018,530		$	30.54	5.30	$	3.3	30,000	$	5.89	4.19	$	—
Changes during the period:
Granted	209,346		4.86					—	—
Exercised	(240	)	3.54					—	—
Forfeited	(2,610	)	4.63					—	—
Expired	(130,354	)	57.67					—	—
Outstanding at September 30, 2019	1,094,672		$	22.47	6.03	$	—	30,000	$	5.89	3.45	$	—
Vested at September 30, 2019 or expected to vest in the future	1,074,281		$	22.81	5.97	$	—	30,000	$	5.89	3.45	$	—
Vested at September 30, 2019	854,347		$	27.50	5.20	$	—	30,000	$	5.89	3.45	$	—

Nonvested Restricted Stock Shares Activity [Table Text Block]

During the nine months endedSeptember 30, 2019 and 2018, the Company issued restricted stock for services as follows ($ in thousands):

	Nine Months Ended September 30,
	2019		2018
Number of restricted stock issued	123,564		91,740
Value of restricted stock issued	$	612	$	348

Schedule of Restricted Stock

During the nine months endedSeptember 30, 2019 and 2018, the Company issued restricted stock units for services as follows ($ in thousands, except share data):

	Nine Months Ended September 30,
	2019		2018
Number of restricted stock units issued	184,454		127,228
Value of restricted stock units issued	$	909	$	652