Note 5 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

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

	December 31,
	2013			2012
Buildings	$	355,000		$	355,000
Machinery and equipment		9,706,000			9,462,000
Office furniture and equipment		1,005,000			962,000
Leasehold improvements		454,000			441,000
		11,520,000			11,220,000
Less accumulated depreciation and amortization		(8,452,000	)		(7,801,000	)
	$	3,068,000		$	3,419,000