9. Stock Options and Warrants (Tables)

12 Months Ended

Dec. 31, 2015

Stock Options And Warrants Tables

Fair values of option awards granted

	2015	2014
Risk free interest rate	1.61% - 1.97%	1.52% - 1.78%
Dividend yield	0%	0%
Expected term	5-10 years	5 years
Expected volatility	41.2 – 54.2%	40.7 – 47.3%

Options issued under foregoing option plans

	Options outstanding
	Number of shares		Weighted average exercise price per share
Balance at December 31, 2013		1,187,000	$	0.26
Options granted		80,000		0.16
Options expired or forfeited		(3,000)		0.11
Balance at December 31, 2014		1,264,000		0.26
Options granted		20,000		0.20
Options expired or forfeited		(91,000)		0.42
Balance at December 31, 2015		1,193,000	$	0.24

Summary information about options

Options outstanding								Options exercisable
Total shares		Weighted average exercise price		Weighted average remaining contractual life in years		Aggregate intrinsic value		Total shares		Weighted average exercise price		Weighted average remaining contractual life in years		Aggregate intrinsic value
	1,193,000	$	0.24		4.97	$	920		1,143,500	$	0.25		4.80	$	920

Nonvested stock awards

	Nonvested
	Number of shares			Weighted average grant date fair value
Balance at December 31, 2014		209,500		$	0.07
Granted		20,000			0.11
Vested		(179,000	)		0.08
Expired before Vesting		(1,000	)		0.10
Balance at December 31, 2015		49,500		$	0.07