Common Stock Options And Stock Purchase Plan (Tables)

12 Months Ended

Dec. 31, 2017

Employee Stock Option [Member]

Schedule of Stock options activity

	Options Outstanding
	Number of Shares		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (1)
Balance at January 1, 2016		50,000	$	4.21		7.6
Granted		50,000		3.41		10.0
Exercised		0
Canceled/forfeited/expired		0
Balance at December 31, 2016		100,000		3.81		8.7
Granted		0
Exercised		0
Canceled/forfeited/expired		0
Balance at December 31, 2017		100,000	$	3.81		7.7
Vested and exercisable as of December 31, 2017		70,000					$	32

(1) The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2017.

Director Stock Option [Member]

Schedule of Stock options activity

	Options Outstanding
	Number of Shares		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (1)
Balance at January 1, 2016		207,500	$	4.62		7.4
Granted		0
Exercised		0
Canceled/forfeited/expired		0
Balance at December 31, 2016		207,500		4.62		6.4
Granted		0
Exercised		0
Canceled/forfeited/expired		0
Balance at December 31, 2017		207,500	$	4.62		5.4
Vested and exercisable as of December 31, 2017		202,500					$	0

(1) The aggregate intrinsic value is calculated as approximately the difference between the weighted average exercise price of the underlying awards and the Company’s estimated current fair market value at December 31, 2017.