Note 7 - Common Stock (Details) (USD $)	1 Months Ended		2 Months Ended	3 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended
	Feb. 28, 2015	Sep. 23, 2014	Nov. 30, 2014	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014
Note 7 - Common Stock (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	605,556	940,189	382,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)	$ 0.50	$ 0.53	$ 0.53
Warrant Term	10 years	5 years	5 years
Amortization of Debt Discount (Premium) (in Dollars)				$ 48,000	$ 0
Unamortized Debt Issuance Expense (in Dollars)				526,000		526,000
Percent of Outstanding Loan Amount				1.00%		1.00%
Allocated Share-based Compensation Expense (in Dollars)				42,000	13,000
Class of Warrant or Right, Outstanding (in Shares)				2,411,071		2,411,071
March 2015 Issuance [Member]
Note 7 - Common Stock (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)				11,628		11,628
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)				$ 0.34		$ 0.34
Warrant Term						10 years
Fair Value Assumptions, Expected Dividend Rate						0.00%
Fair Value Assumptions, Expected Volatility Rate						78.90%
Fair Value Assumptions, Risk Free Interest Rate						1.94%
Fair Value Assumptions, Expected Term						10 years
Allocated Share-based Compensation Expense (in Dollars)				3,000
Private Placement [Member]
Note 7 - Common Stock (Details) [Line Items]
Right to Shares Agreement, Common Shares Cancelled (in Shares)				854,989
Right to Shares Agreement, Obligated to Issue, Shares (in Shares)				956,354		956,354
Right to Shares Agreement, Not Issued Due to Beneficial Ownership Limitations, Shares (in Shares)				101,365
Right to Shares Agreement, Delivery of Shares, Days Obligated				3 days
Right to Shares Agreement, Common Stock, Shares Issued (in Shares)							390,316
Right to Shares Agreement, Shares Reserved But Not Issued (in Shares)				566,038		566,038
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)				940,189		940,189
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)				$ 0.53		$ 0.53
Warrant Term				5 years
Warrant [Member] | Vendors and Nonemployee [Member]
Note 7 - Common Stock (Details) [Line Items]
Allocated Share-based Compensation Expense (in Dollars)				15,000
Warrant [Member] | Employees [Member]
Note 7 - Common Stock (Details) [Line Items]
Allocated Share-based Compensation Expense (in Dollars)				244,000
Warrant [Member] | Minimum [Member]
Note 7 - Common Stock (Details) [Line Items]
Fair Value Assumptions, Risk Free Interest Rate			1.55%
Warrant [Member] | Maximum [Member]
Note 7 - Common Stock (Details) [Line Items]
Fair Value Assumptions, Risk Free Interest Rate			1.65%
Warrant [Member]
Note 7 - Common Stock (Details) [Line Items]
Fair Value Assumptions, Expected Dividend Rate	0.00%		0.00%
Fair Value Assumptions, Expected Volatility Rate	77.60%		61.30%
Fair Value Assumptions, Risk Free Interest Rate	2.14%
Fair Value Assumptions, Expected Term	10 years		5 years
September 2014 Term Loan [Member]
Note 7 - Common Stock (Details) [Line Items]
Warrant Term								10 years
Warrants and Rights Outstanding (in Dollars)								$ 622,000
Fair Value Assumptions, Expected Dividend Rate								0.00%
Fair Value Assumptions, Expected Volatility Rate								77.00%
Fair Value Assumptions, Risk Free Interest Rate								2.50%
September 2014 Term Loan [Member]
Note 7 - Common Stock (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)								471,698
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)								$ 0.53
Warrant Term								10 years