Stock-Based Compensation - Stock Option Activity (Details) - Stock Options - Incentive Plan	9 Months Ended
	Sep. 30, 2019 USD ($) $ / shares shares
Number of Options
Outstanding, beginning of period (in shares) | shares	932,500
Granted (in shares) | shares	0
Exercised (in shares) | shares	0
Expired or forfeited (in shares) | shares	(185,000)
Outstanding, end of period (in shares) | shares	747,500
Number of Shares, exercisable (in shares) | shares	747,500
Weighted- Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 4.68
Granted (in dollars per share) | $ / shares	0.00
Exercised (in dollars per share) | $ / shares	0.00
Expired or forfeited (in dollars per share) | $ / shares	10.14
Outstanding, end of period (in dollars per share) | $ / shares	3.33
Weighted average exercise price, exercisable (in dollars per share) | $ / shares	$ 3.33
Weighted- Average Remaining Contractual Term, Outstanding	4 years 11 months 23 days
Weighted- Average Remaining Contractual Term, Exercisable	4 years 11 months 23 days
Aggregate Intrinsic Value, Outstanding | $	$ 4
Aggregate Intrinsic Value, Exercisable | $	4
Unrecognized compensation costs | $	$ 0