Note 8 - Debt (Details) - Long-Term Notes Payable (USD $)	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Note payable to bank, with interest at 3.46%, payable in monthly principal installments of $72,917 plus interest through March 28, 2016, collateralized by all the assets of the Company except the Dansensor stock.	$ 1,604,158	$ 2,041,660
Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual payments of principal and interest totaling $891,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding stock of Dansensor.	1,010,416	1,914,941
Capital leases	40,342	47,926
Total notes payable	2,654,916	4,004,527
Less current portion of notes payable	1,892,812	2,697,678
Total long-term notes payable	$ 762,104	$ 1,306,849