Note 4 - Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	2014		2013
Raw materials	$	4,307,913	$	4,058,350
Work-in-process		419,731		300,460
Finished goods		114,415		138,539
Totals	$	4,842,059	$	4,497,349