Note 7 - Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended March 31,
Statement of Operations Classification	2015		2014
Costs of revenue	$	3,000	$	(600	)
Selling and marketing expense		29,300		5,900
General and administrative expense		168,100		137,200
Research and development expense		21,800		27,200
	$	222,200	$	169,700

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Terms (Years)		Aggregate Intrinsic Value
Outstanding – December 31, 2014		10,287,999		$	0.18
Granted		—			—
Exercised		(77,500	)		0.05
Forfeited or expired		—			—
Outstanding – March 31, 2015		10,210,499		$	0.18		7.07	$	194,100

Nonvested Restricted Stock Shares Activity [Table Text Block]

	Number of Shares			Weighted Average Grant Date Fair Value		Weighted Average Remaining Recognition Period (Years)		Unrecognized Compensation Cost Remaining
Unreleased – December 31, 2014		4,314,983		$	0.18
Awarded		225,000			0.16
Released		(437,578	)		0.20
Forfeited		(80,221	)		0.17
Unreleased – March 31, 2015		4,022,184		$	0.17		2.27	$	580,900