Note 4 - Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Inventory, Current [Table Text Block]

	2012		2011
Raw materials	$	1,441,370	$	1,686,880
Work-in-process *		304,916		507,943
Finished goods		996,619		37,250
Totals		2,742,905		2,232,073