Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended
	March 31,
	2015			2014
Numerator:
Income (loss) from continuing operations	$	1,165		$	(4,050	)
Loss from discontinued operations		(36	)		(20	)
Net income (loss)	$	1,129		$	(4,070	)
Denominator:
Basic weighted average common shares outstanding		9,671			5,172
Potential common shares from options and warrants		322			-
Diluted weighted average shares		9,993			5,172

Schedule of Product Warranty Liability [Table Text Block]

	Three months ended
	March 31,
	2015			2014
Balance at beginning of period	$	188		$	75
Accruals for warranties issued		352			16
Settlements made during the period (in cash or in kind)		(37	)		(16	)
Accrued warranty reserve	$	503		$	75