Stock-based Compensation (Details 1) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Options Outstanding, Beginning		1,477,300
Number of Options, Granted		25,000
Number of Options, Exercised		0
Number of Options, Forfeited		0
Number of Options, Expired		0
Number of Options Outstanding, Ending		1,502,300	1,477,300
Number of Options, Exercisable		1,044,286
Weighted Average Exercise Price Per Share Outstanding, Beginning		$ 1.61
Weighted Average Exercise Price Per Share, Granted		8.04
Weighted Average Exercise Price Per Share, Exercised		0
Weighted Average Exercise Price Per Share, Forfeited		0
Weighted Average Exercise Price Per Share, Expired		0
Weighted Average Exercise Price Per Share Outstanding, Ending		1.72	$ 1.61
Weighted Average Exercise Price Per Share Outstanding, Exercisable		$ 1.28
Weighted Average Remaining Contractual Term (years)		5 years 6 months	5 years 9 months 18 days
Weighted Average Remaining Contractual Term (years), Granted		5 years
Weighted Average Remaining Contractual Term (years), Exercisable		5 years 3 months 18 days
Aggregate Intrinsic Value, Beginning	[1]	$ 9,662
Aggregate Intrinsic Value, Ending	[1]	9,299	$ 9,662
Aggregate Intrinsic Value, Exercisable	[1]	$ 6,924

[1] The aggregate intrinsic value on the table was calculated based on the difference between the estimated fair value of the Company's stock and the exercise price of the underlying option. The estimated stock values used in the calculation was $7.91 and $8.15 per share for the three months ended March 31, 2017 and the year ended December 31, 2016, respectively.