Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details Narrative 1)

Stockholders' Equity (Details Narrative 1) - USD ($) $ / shares in Units, $ in Thousands																1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2017	Apr. 11, 2017	Apr. 03, 2017	Mar. 20, 2017	Mar. 17, 2017	Feb. 16, 2017	Feb. 13, 2017	Feb. 10, 2017	Nov. 21, 2016	Jun. 07, 2016	Nov. 02, 2015	Oct. 31, 2015	Aug. 13, 2015	Aug. 05, 2015	Sep. 08, 2014	Jul. 31, 2017	Jun. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016
Exercise price (in dollars per share)																		$ 8.45
Uunrecognized compensation expense																		$ 700
Recognition period																		1 year 10 months 24 days
Weighted-average grant-date fair value (in dollars per share)																		$ 5.55	$ 4.47	$ 2.20
Intrinsic value of options exercised																		$ 1,500	$ 22
Cash received from exercise of stock options																		$ 1,100
Additional compensation expense for option modification																	$ 175
Description of discount on convertible note																		To avoid reducing the initial net carrying value of the convertible note to or below zero, the discount attributable to the BCF was limited such that the aggregate of all discounts does not exceed 99.5% of the face amount of the convertible note.
Number of share granted																		1,065,003	443,565	611,313
Fair value of per share granted																		$ 6.51	$ 4.96	$ 3.95
Restricted Stock Units (RSUs) [Member] \| Non-Officer Employees [Member]
Number of share granted	146,200
Fair value of per share granted	$ 5.78
Description of shares vesting	Restricted stock units were granted with 50% vesting on January 15, 2018 and the remaining 50% vesting on January 15, 2019.
Restricted Stock Units (RSUs) [Member] \| Employment Agreement [Member] \| Mr. Weinswig [Member]
Number of share granted																49,751
Fair value of per share granted																$ 11.68
Number of share vest in July 31, 2018																16,584
Number of share vest in July 31, 2019																16,584
Number of share vest in July 31, 2020																16,583
2014 Stock Incentive Plan [Member]
Awards term																					10 years
Number of common shares authorized																					2,113,637
Uunrecognized compensation expense																		$ 900
Recognition period																		1 year 10 months 24 days
Common Stock [Member]
Number of common shares issued in exercise of warrant																		1,173,296	15,203
2016 Public Offering [Member] \| Common Stock [Member] \| Underwriter [Member]
Number of warrants issued																			33,450
Consulting Warrants [Member]
Exercise price (in dollars per share)						$ 6.00					$ 6.00	$ 6.00			$ 0.0034375
Fair value of warrant issued											$ 36	$ 28
Warrant term											1 year
Number of warrants issued											30,000	12,500			436,364
Number of warrants exercised						35,000
Number of common shares issued in exercise of warrant						22,470
Warrant expiration date												Jul. 30, 2018
Share price (in dollars per share)						$ 16.768
Warrants [Member]
Exercise price (in dollars per share)		$ 6.00	$ 0.0034375	$ 3.00	$ 6.00		$ 3.00			$ 6.00
Number of warrants exercised		12,500	43,636	226,068	2,500		25,119			30,000								1,461,744
Number of common shares issued in exercise of warrant		8,315	43,628	192,666	2,500		19,349			15,203								1,175,796
Share price (in dollars per share)		$ 17.920	$ 19.148	$ 20.304	$ 20.262		$ 13.062			$ 12.16
Warrants [Member] \| August 2015 Public Offerings [Member]
Exercise price (in dollars per share)														$ 6.00
Warrants exercisable date														Jul. 30, 2016
Warrants maturity period														5 years
Number of warrants issued														660,000
Warrants [Member] \| Over-Allotment Option [Member]
Exercise price (in dollars per share)													$ 6.00
Warrants exercisable date													Jul. 30, 2016
Warrants maturity period													5 years
Number of warrants issued													64,193
Warrants [Member] \| 2016 Public Offering [Member]
Number of warrants issued																			2,305,378
Warrants [Member] \| 2016 Public Offering [Member] \| Underwriter [Member]
Exercise price (in dollars per share)									$ 10.00
Warrants exercisable date									May 20, 2017
Fair value of warrant issued									$ 229
Number of warrants issued									33,450
Warrant expiration date									Nov. 21, 2019
Share price (in dollars per share)									$ 12.66
Warrant Exercise Price $6.00 [Member]
Exercise price (in dollars per share)																						$ 6.00	$ 6.00	$ 6.00
Number of warrants issued																						12,500	12,500	12,500
Share price (in dollars per share)																						$ 9.31	$ 8.37	$ 4.63
Liquid Patent Consulting, LLC [Member] \| Consulting Warrants [Member]
Exercise price (in dollars per share)								$ 0.0034375							$ 0.0034375
Warrants maturity period															3 years
Warrant term															180 days
Number of warrants issued															436,364
Number of warrants exercised								392,728
Number of common shares issued in exercise of warrant								392,605
Share price (in dollars per share)								$ 11.016