Note 13 - Stock Option Plans (Tables)

12 Months Ended

Dec. 31, 2012

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

	2012				2011
Options outstanding at January 1			342,500				194,000
Options cancelled			(14,000	)			(16,000	)
Options granted			17,000				164,500
Options outstanding at December 31			345,500				342,500
Options available for grant at December 31			368,500				405,500
Options exercisable at December 31			220,833				172,000
Exercise price ranges per share:
Granted	$		1.64		$	1.52	-	$1.72
Outstanding	$	0.69	-	$3.84	$	0.69	-	$3.84
Weighted average exercise price per share:
Granted	$		1.64		$		1.63
Outstanding at December 31	$		1.72		$		1.78
Exercisable at December 31	$		1.77		$		1.95

Outstanding [Member]

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Options Outstanding:
Range of Exercise Price				Number Outstanding		Wgt. Avg. Contractual Life Remaining (yrs)	Wgt. Avg. Exercise Price		Aggregate Intrinsic Value
	$0.69	-	$2.08		321,500	5.6	$	1.58	$	10,320
	$2.96	-	$4.26		24,000	4.9	$	3.57		--
	$0.69	-	$4.26		345,500	5.5	$	1.72	$	10,320

Exercisable [Member]

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Options Exercisable:
Range of Exercise Price				Number Exercisable		Wgt. Avg. Contractual Life Remaining (yrs)	Wgt. Avg. Exercise Price
	$0.69	-	$2.08		196,833	3.6	$	1.55
	$2.96	-	$4.26		24,000	4.9	$	3.57
	$1.51	-	$4.26		220,833	3.8	$	1.77