Stock Incentive Plans - Schedule of Summary of Additional Information on Stock Options Outstanding (Details)	12 Months Ended
	Dec. 31, 2017 $ / shares shares
Number of Options Outstanding, Shares | shares	745,707
Options Outstanding Weighted-average Remaining Contractual Life (years)	7 years 8 months 5 days
Options Outstanding Weighted Average Exercise Price	$ 8.84
Number of Option Exercisable, Shares | shares	139,673
Options Exercisable Weighted Average Exercise Price	$ 3.85
Range One [Member]
Range of Exercise Prices, Upper	$ 1.00
Number of Options Outstanding, Shares | shares	14,000
Options Outstanding Weighted-average Remaining Contractual Life (years)	3 years 10 months 17 days
Options Outstanding Weighted Average Exercise Price	$ 1.00
Number of Option Exercisable, Shares | shares	14,000
Options Exercisable Weighted Average Exercise Price	$ 1.00
Range Two [Member]
Range of Exercise Prices, Lower	1.70
Range of Exercise Prices, Upper	$ 1.80
Number of Options Outstanding, Shares | shares	534,007
Options Outstanding Weighted-average Remaining Contractual Life (years)	9 years 2 months 23 days
Options Outstanding Weighted Average Exercise Price	$ 1.79
Number of Option Exercisable, Shares | shares	47,973
Options Exercisable Weighted Average Exercise Price	$ 1.75
Range Three [Member]
Range of Exercise Prices, Lower	2.60
Range of Exercise Prices, Upper	$ 8.20
Number of Options Outstanding, Shares | shares	168,400
Options Outstanding Weighted-average Remaining Contractual Life (years)	4 years 1 month 13 days
Options Outstanding Weighted Average Exercise Price	$ 3.15
Number of Option Exercisable, Shares | shares	48,400
Options Exercisable Weighted Average Exercise Price	$ 4.62
Range Four [Member]
Range of Exercise Prices, Lower	10.70
Range of Exercise Prices, Upper	$ 22.00
Number of Options Outstanding, Shares | shares	25,050
Options Outstanding Weighted-average Remaining Contractual Life (years)	1 year 8 months 23 days
Options Outstanding Weighted Average Exercise Price	$ 10.81
Number of Option Exercisable, Shares | shares	25,050
Options Exercisable Weighted Average Exercise Price	$ 10.81
Range Five [Member]
Range of Exercise Prices, Lower	476.00
Range of Exercise Prices, Upper	$ 876.00
Number of Options Outstanding, Shares | shares	2,100
Options Outstanding Weighted-average Remaining Contractual Life (years)	5 months 9 days
Options Outstanding Weighted Average Exercise Price	$ 676.00
Number of Option Exercisable, Shares | shares	2,100
Options Exercisable Weighted Average Exercise Price	$ 676.00
Range Six [Member]
Range of Exercise Prices, Lower	1,276.00
Range of Exercise Prices, Upper	$ 2,076.00
Number of Options Outstanding, Shares | shares	2,150
Options Outstanding Weighted-average Remaining Contractual Life (years)	5 months 9 days
Options Outstanding Weighted Average Exercise Price	$ 1,582.98
Number of Option Exercisable, Shares | shares	2,150
Options Exercisable Weighted Average Exercise Price	$ 1,582.98