Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Net Loss Per Share Basic and Diluted

	December 31,
Basic and diluted loss per share	2016			2017			2018
Net loss	$	(6,370,000	)	$	(3,870,000	)	$	(5,812,000	)
Weighted-average common shares outstanding - basic and diluted		12,984,000			14,961,000			17,233,000
Net loss per share - basic and diluted	$	(0.49	)	$	(0.26	)	$	(0.34	)