Note 4 - Impairment Charges (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Cost Of Goods Sold [Member] | Machinery & Equipment [Member]
Asset Impairment	$ 1,013
Selling, General and Administrative Expenses [Member] | Office & Computer Equipment [Member]
Asset Impairment	228
Selling, General and Administrative Expenses [Member] | Customer Relationship [Member]
Asset Impairment	224
Selling, General and Administrative Expenses [Member] | Non-Patented Technology [Member]
Asset Impairment	209
Selling, General and Administrative Expenses [Member] | Classic Fire Trade Name [Member]
Asset Impairment	560
Selling, General and Administrative Expenses [Member]
Asset Impairment	1,221
Asset Impairment	$ 2,234