Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	June 30, 2013		December 31, 2012
Raw materials	$	1,694,444	$	1,441,370
Work-in-process		435,457		304,916
Finished goods		906,828		996,619
Totals	$	3,036,729	$	2,742,905