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Stockholders' Equity (Details 1) - Stock Option [Member]
 12 Months Ended
Dec. 31, 2019
$ / shares
shares
Stock Options:  
Number of Options, Outstanding beginning balance | shares 1,037,797
Number of Options, Granted | shares 268,294
Number of Options, Exercised | shares
Number of Options, Forfeited or canceled, during the period | shares (263,661)
Number of Options, Expired, during the period | shares (21,187)
Number of Options, Outstanding ending balance | shares 1,021,243
Number of Options, Exercisable | shares 764,400
Weighted Average Exercise Price, Outstanding beginning balance | $ / shares $ 4.17
Weighted Average Exercise Price, Granted | $ / shares 3.17
Weighted Average Exercise Price, Exercised | $ / shares 4.55
Weighted Average Exercise Price, Forfeited or canceled, during the period | $ / shares 4.34
Weighted Average Exercise Price, Expired, during the period | $ / shares 4.55
Weighted Average Exercise Price, Outstanding ending balance | $ / shares 4.82
Weighted Average Exercise Price, Exercisable | $ / shares $ 5.34