Stock-Based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based compensation expense	$ 538	$ 597
Stock Incentive Plan [Member]
Share-based compensation arrangement by share-based payment award, description	Stock options have been granted with an exercise price equal to the market value of the common stock on the date of grant, expire 10 years from the date they are granted, and generally vested over a one to three-year period for employees and members of the Board of Directors. Upon exercise, new shares will be issued by the Company. The Company granted stock options in 2017 which vest monthly over a one-year period. SARs are generally granted with a grant price equal to the market value of the common stock on the date of grant, vest one-third each year on the anniversary of the date of grant and expire five years from the date of grant. The restricted shares and restricted stock units granted to employees generally have a three-year graded vesting period and are subject to accelerated vesting and forfeiture under certain circumstances.
Share-based compensation arrangement, options, grants in period, gross		1,105,440
Share-based compensation arrangements, options, grants in period, weighted average exercise price		$ 0.98
Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based compensation arrangement, options, grants in period, gross		276,360
Share-based compensation arrangement, award vesting period		3 years