Note 8 - Notes Payable (Details) (USD $)	12 Months Ended			1 Months Ended	0 Months Ended	3 Months Ended	1 Months Ended	6 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended	28 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 25, 2013	Jun. 10, 2014	Jun. 30, 2014	Nov. 30, 2013	Jun. 10, 2014	Jun. 30, 2012	Mar. 31, 2013	Jun. 20, 2014	Feb. 28, 2014	Nov. 30, 2011	Dec. 31, 2011	Jun. 09, 2014
Note 8 - Notes Payable (Details) [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)	$ 8.18	$ 10.65	$ 15.17											$ 1,418
Fair Value Assumptions, Expected Volatility Rate		64.74%	92.02%
Fair Value Assumptions, Risk Free Interest Rate		0.13%	0.73%
Fair Value Assumptions, Expected Term		1 year 3 months	1 year 47 days
Increase (Decrease) in Other Operating Assets	$ 213,949
Number of Warrants Issued (in Shares)	1,801,802	1,341,382
Lab Equipment [Member] | November 2011 Capital Lease [Member]
Note 8 - Notes Payable (Details) [Line Items]
Capital Leased Assets, Gross													144,448
Hercules Warrant [Member] | First 50 Percent [Member] | Hercules Credit Agreement [Member]
Note 8 - Notes Payable (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares)				97,493
Hercules Warrant [Member] | First 50 Percent [Member]
Note 8 - Notes Payable (Details) [Line Items]
Debt Instrument, Unamortized Discount						260,928
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares)						97,493
Hercules Warrant [Member] | Second 50 Percent [Member] | Hercules Credit Agreement [Member]
Note 8 - Notes Payable (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares)					97,493			97,493
Hercules Warrant [Member] | Second 50 Percent [Member]
Note 8 - Notes Payable (Details) [Line Items]
Debt Instrument, Unamortized Discount															215,333
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares)															97,493
Hercules Warrant [Member] | Hercules Credit Agreement [Member]
Note 8 - Notes Payable (Details) [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)				$ 3.59
Fair Value Assumptions, Expected Volatility Rate				102.00%
Fair Value Assumptions, Risk Free Interest Rate				1.37%
Fair Value Assumptions, Expected Term				5 years
Share Price (in Dollars per share)				$ 3.55
Hercules Warrant [Member]
Note 8 - Notes Payable (Details) [Line Items]
Deferred Finance Costs, Net		521,763
Fair Value Assumptions, Expected Volatility Rate					104.00%
Fair Value Assumptions, Risk Free Interest Rate					1.69%
Fair Value Assumptions, Expected Term					4 years 6 months
Share Price (in Dollars per share)					$ 3.07			$ 3.07
Increase (Decrease) in Other Operating Assets						(521,763)
Adjustments to Additional Paid in Capital, Other						(521,763)
Number of Warrants Issued (in Shares)	97,493	97,493
Oxford & Horizon Warrants [Member]
Note 8 - Notes Payable (Details) [Line Items]
Deferred Finance Costs, Net	73,654
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)	$ 13.14
Fair Value Assumptions, Expected Volatility Rate	74.30%
Fair Value Assumptions, Risk Free Interest Rate	1.10%
Fair Value Assumptions, Expected Term	3 years 6 months
Share Price (in Dollars per share)	$ 12.60
Note Stock Conversion Rate	3.00%
Number of Warrants Issued (in Shares)	11,415
Warrants Issued Expiration Period	7 years
Hercules Credit Agreement [Member] | EGEN, Inc. [Member]
Note 8 - Notes Payable (Details) [Line Items]
Payments to Acquire Businesses, Gross					3,000,000
Hercules Credit Agreement [Member] | Hercules [Member]
Note 8 - Notes Payable (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							20,000,000
Proceeds from Lines of Credit					5,000,000		5,000,000	10,000,000
Debt Instrument, Basis Spread on Variable Rate				11.25%
Deferred Finance Costs, Net							122,378
Debt Instrument, Unamortized Discount							230,000
Line of Credit Facility, Original Loan Fee, Percent	3.50%
Deferred Finance Costs, Gross	350,000
Hercules Credit Agreement [Member]
Note 8 - Notes Payable (Details) [Line Items]
Interest Expense, Debt	892,188
Amortization of Financing Costs	433,839
Oxford and Horizon Credit Agreement [Member] | Oxford [Member]
Note 8 - Notes Payable (Details) [Line Items]
Debt Instrument, Percentage Funded by Certain Lender									50.00%
Oxford and Horizon Credit Agreement [Member] | Horizon [Member]
Note 8 - Notes Payable (Details) [Line Items]
Debt Instrument, Percentage Funded by Certain Lender									50.00%
Oxford and Horizon Credit Agreement [Member]
Note 8 - Notes Payable (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									10,000,000
Deferred Finance Costs, Net	217,715
Interest Expense, Debt										146,874
Amortization of Financing Costs										31,560
Loan Tranche Amount									5,000,000
Repayments of Secured Debt	4,100,000
Debt Instrument, Interest Rate, Stated Percentage										11.75%
EGEN, Inc. [Member]
Note 8 - Notes Payable (Details) [Line Items]
Payments to Acquire Businesses, Gross											3,000,000
Share Price (in Dollars per share)	$ 3.48
November 2011 Capital Lease [Member] | November 2011 Capital Lease [Member]
Note 8 - Notes Payable (Details) [Line Items]
Debt Instrument, Periodic Payment												5,651
November 2011 Capital Lease [Member]
Note 8 - Notes Payable (Details) [Line Items]
Capital Leases of Lessee, Number of Monthly Payments													30
Repayments of Long-term Capital Lease Obligations	11,303
Oxford and Horizon [Member]
Note 8 - Notes Payable (Details) [Line Items]
Repayments of Lines of Credit							$ 4,000,000