Note 5 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Property and Equipment Carrying Value [Table Text Block]

	December 31,
	2012			2011
Buildings	$	355,000		$	355,000
Machinery and equipment		9,462,000			8,968,000
Office furniture and equipment		962,000			938,000
Leasehold improvements		441,000			441,000
		11,220,000			10,702,000
Less accumulated depreciation and amortization		(7,801,000	)		(7,066,000	)
	$	3,419,000		$	3,636,000