Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Stock-based Compensation

Summary of stock option activity

	Nine Months Ended			Nine Months Ended
	September 30, 2018			September 30, 2017
		Weighted			Weighted
		Average			Average
	Number	Exercise		Number	Exercise
	Outstanding	Price		Outstanding	Price
Outstanding at beginning of period	537,500	$	2.19	540,625	$	2.18
Granted during period	—		—	—		—
Exercised during period	—		—	—		—
Forfeited or expired during period	—		—	—		—
Outstanding at end of period	537,500	$	2.19	540,625	$	2.18
Exercisable at end of period	267,500	$	2.71	180,625	$	3.29

Summary of options outstanding and exercisable

	Outstanding						Exercisable
		Weighted
		Average	Weighted					Weighted
		Remaining	Average		Aggregate			Average		Aggregate
	Number	Contractual	Exercise		Intrinsic		Number	Exercise		Intrinsic
Grant Date	Outstanding	Life	Price		Value		Outstanding	Price		Value
January 21, 2009	7,500	0.30 years	$	4.00			7,500	$	4.00
March 18, 2009	75,000	0.46 years	$	4.98			75,000	$	4.98
January 21, 2010	5,000	1.30 years	$	6.00			5,000	$	6.00
February 24, 2016	450,000	7.40 years	$	1.62			180,000	$	1.62
	537,500	6.28 years	$	2.19	$	—	267,500	$	2.71	$	—