Note 2 - Acquisition of Business (Details) - Assets Acquired and Liabilities Assumed (USD $)	Sep. 30, 2014	Dec. 31, 2013	Jul. 02, 2013
Assets Acquired and Liabilities Assumed [Abstract]
Accounts receivable			$ 4,672,000
Prepaid expenses and other current assets			1,096,000
Inventories			10,374,000
Property, plant and equipment			4,284,000
Identifiable intangible assets			18,900,000
Goodwill	4,135,000	4,135,000	4,135,000
Total assets			43,461,000
Other current liabilities			2,680,000
Future contingent liabilities			6,743,000
Total liabilities			$ 9,423,000