Note 4 - Balance Sheet Components (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2014

Dec. 31, 2013

Disclosure Text Block Supplement [Abstract]

Property, Plant and Equipment [Table Text Block]

	2012			2013
Medical equipment	$	215,639		$	276,443
Computer equipment		30,871			32,143
Furniture and fixtures		13,293			13,293
		259,803			321,879
Less: Accumulated depreciation and amortization		(131,176	)		(194,355	)
Net property and equipment	$	128,627		$	127,524

Schedule of Accrued Liabilities [Table Text Block]

	September 30,		December 31,
	2014		2013
Accrued interest	$	13,792	$	235,603
Accrued professional fees		125,671		15,000
Accrued loan balloon payment		85,000		76,472
Accrued vacation		73,809		81,499
Accrued loan restructuring fees		47,500		27,288
Accrued severence pay		-		58,846
Other accruals		41,766		21,444
Total accrued liabilities	$	387,538	$	516,152

	2012		2013
Accrued settlement related costs	$	263,560	$	-
Accrued interest		8,987		312,075
Accrued severence pay		-		58,846
Accrued vacation		54,153		81,499
Accrued loan restructuring fees		-		27,288
Deferred rent		18,034		15,284
Other accruals		910		21,160
Total accrued liabilities	$	345,644	$	516,152