Stock Options, Incentive Plans, Stock Awards, and Employee Benefit Plan - Schedule of Share-based Compensation Activity (Details) - Restricted Stock	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares
Shares
Outstanding, December 31, 2017 (in shares) | shares	5,019,936
Granted (in shares) | shares	175,000
Vested (in shares) | shares	1,253,334
Forfeited (in shares) | shares	66,667
Outstanding, December 31, 2018 (in shares) | shares	3,874,935
Expected to Vest after December 31, 2018 (in shares) | shares	3,874,935
Weighted Average Exercise Price
Outstanding, December 31, 2017 (in dollars per share) | $ / shares	$ 1.98
Granted (in dollars per share) | $ / shares	1.74
Vested (in dollars per share) | $ / shares	0.00
Forfeited (in dollars per share) | $ / shares	0.00
Outstanding, December 31, 2018 (in dollars per share) | $ / shares	2.27
Expected to Vest after December 31, 2018 (in dollars per share) | $ / shares	$ 2.27
Weighted Average Contractual Remaining Life
Weighted average contractual remaining life, outstanding	7 years 18 days
Weighted average contractual remaining life, expected to vest after year end	7 years 18 days
Aggregate Intrinsic Value
Aggregate intrinsic value, outstanding | $	$ 0
Aggregate intrinsic value, expected to vest after year end | $	$ 0