Note 7 - Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

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 June 30,				Six Months Ended June 30,
Statement of Operations Classification	2014		2013		2014		2013
Costs of revenue	$	3,700	$	1,700	$	3,100	$	3,800
Selling and marketing expense		21,000		38,400		26,900		78,900
General and administrative expense		109,200		84,600		246,400		179,500
Research and development expense		26,600		80,000		53,800		128,300
	$	160,500	$	204,700	$	330,200	$	390,500

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 – March 31, 2014		11,562,055		$	0.20
Granted		—			—
Exercised		(41,061	)		0.10
Forfeited or expired		(415,727	)		0.21
Outstanding – June 30, 2014		11,105,267		$	0.21		5.32	$	72,600

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Terms (Years)		Aggregate Intrinsic Value
Outstanding – December 31, 2013		12,019,328		$	0.21
Granted		—			—
Exercised		(256,818	)		0.19
Forfeited or expired		(657,243	)		0.21
Outstanding – June 30, 2014		11,105,267		$	0.21		5.32	$	72,600

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 – March 31, 2014		2,677,820		$	0.31
Awarded		1,767,000			0.17
Released		(342,135	)		0.27
Forfeited		(477,228	)		0.34
Unreleased – June 30, 2014		3,625,457		$	0.24		2.24	$	749,100

	Number of Shares			Weighted Average Grant Date Fair Value		Weighted Average Remaining Recognition Period (Years)		Unrecognized Compensation Cost Remaining
Unreleased – December 31, 2013		3,938,426		$	0.28
Awarded		2,152,000			0.19
Released		(818,394	)		0.27
Forfeited		(1,646,575	)		0.26
Unreleased – June 30, 2014		3,625,457		$	0.24		2.24	$	749,100