Shareholders' Equity (Details 4) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Options Outstanding (in shares)	372,927
Weighted Average Remaining Contractual Life (in years)	5 years 2 months 23 days
Outstanding Weighted Average Exercise Price Per Share (in dollars per share)	$ 2.36
Options Exercisable (in shares)	253,412	366,346
Exercisable Weighted Average Exercise Price Per Share (in dollars per share)	$ 2.55
Exercise Price Range One [Member]
Ranges of Exercise Prices Lower (in dollars per share)	1.18
Ranges of Exercise Prices Upper (in dollars per share)	$ 2.04
Options Outstanding (in shares)	179,620
Weighted Average Remaining Contractual Life (in years)	7 years 8 months 23 days
Outstanding Weighted Average Exercise Price Per Share (in dollars per share)	$ 1.77
Options Exercisable (in shares)	60,105
Exercisable Weighted Average Exercise Price Per Share (in dollars per share)	$ 1.40
Exercise Price Range Two [Member]
Ranges of Exercise Prices Lower (in dollars per share)	2.05
Ranges of Exercise Prices Upper (in dollars per share)	$ 3.09
Options Outstanding (in shares)	144,125
Weighted Average Remaining Contractual Life (in years)	3 years 5 months 5 days
Outstanding Weighted Average Exercise Price Per Share (in dollars per share)	$ 2.52
Options Exercisable (in shares)	144,125
Exercisable Weighted Average Exercise Price Per Share (in dollars per share)	$ 2.52
Exercise Price Range Three [Member]
Exercise Price (in dollars per share)	$ 4.02
Options Outstanding (in shares)	49,182
Weighted Average Remaining Contractual Life (in years)	1 year 4 months 24 days
Outstanding Weighted Average Exercise Price Per Share (in dollars per share)	$ 4.02
Options Exercisable (in shares)	49,182
Exercisable Weighted Average Exercise Price Per Share (in dollars per share)	$ 4.02