Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Schedule of Stock Option Activity

The following table summarizes the activity for stock options and warrants for the six months ended June 30, 2020:

	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, 2019	1,044,417	$	18.31	6.06	$	—	30,000	$	5.89	3.19	$	—
Changes during the period:
Granted	245,776	3.22					2,123,508	2.16
Exercised	—	—					—	—
Forfeited	(5,400)	3.28					—	—
Expired	(123,584)	21.48					—	—
Outstanding at June 30, 2020	1,161,209	$	14.85	6.98	$	—	2,153,508	$	2.21	5.33	$	—
Vested at June 30, 2020 or expected to vest in the future	1,131,822	$	15.14	6.92	$	—	2,153,508	$	2.21	5.33	$	—
Vested at June 30, 2020	829,034	$	19.25	6.17	$	—	2,153,508	$	2.21	5.33	$	—

Nonvested Restricted Stock Shares Activity [Table Text Block]

During the six months ended June 30, 2020 and 2019, the Company issued restricted stock for services as follows ($ in thousands):

	Six Months Ended June 30,
	2020		2019
Number of restricted stock issued	156,184		123,564
Value of restricted stock issued	$	512	$	612

Schedule of Restricted Stock Units Activity

During the six months ended June 30, 2020 and 2019, the Company issued restricted stock units for services as follows ($ in thousands, except share data):

	Six Months Ended June 30,
	2020		2019
Number of restricted stock units issued	195,320		184,454
Value of restricted stock units issued	$	623	$	909