Note 5 - Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Inventory, Current [Table Text Block]

	March 31, 2013		December 31, 2012
Raw materials	$	1,559,248	$	1,441,370
Work-in-process		398,177		304,916
Finished goods		947,475		996,619
Totals	$	2,904,900	$	2,742,905