Note 2 - Acquisition of Business (Details) (USD $)	0 Months Ended	3 Months Ended
	Jul. 02, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Note 2 - Acquisition of Business (Details) [Line Items]
Payments to Acquire Businesses, Gross	$ 32,483,000
Business Combination, Contingent Consideration, Liability	6,743,000	6,838,000		6,806,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	18,900,000
Amortization of Intangible Assets		516,000	36,000
HPI Direct, Inc. [Member] | Customer Relationships [Member]
Note 2 - Acquisition of Business (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	9,200,000
Finite-Lived Intangible Asset, Useful Life		10 years
HPI Direct, Inc. [Member] | Noncompete Agreements [Member]
Note 2 - Acquisition of Business (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	5,000,000
Finite-Lived Intangible Asset, Useful Life		5 years
HPI Direct, Inc. [Member] | Trade Names [Member]
Note 2 - Acquisition of Business (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	4,700,000
HPI Direct, Inc. [Member]
Note 2 - Acquisition of Business (Details) [Line Items]
Payments to Acquire Businesses, Gross	32,500,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)	209,000
Business Combination, Contingent Consideration, Liability	6,743,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	18,900,000
Business Combination Contingent Consideration Arrangements Change In Amount of Contingent Consideration Liability2		32,000
Amortization of Intangible Assets		480,000
Maximum [Member] | HPI Direct, Inc. [Member]
Note 2 - Acquisition of Business (Details) [Line Items]
Business Combination, Contingent Consideration, Liability	$ 7,200,000