Note 4 - Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventory, Current [Table Text Block]

	December 31,
	2013		2012
Raw materials	$	5,926,030	$	6,109,807
Work-in-process		2,308,233		777,056
Finished goods		2,762,522		1,396,609
Total	$	10,996,785	$	8,283,472