Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Subsequent Events (Details Textual)

v3.5.0.2
Note 12 - Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($)
Aug. 02, 2016
Aug. 22, 2016
Aug. 21, 2016
Revised Loan Agreement [Member] | PNC Bank [Member]      
Debt Instrument, Covenant Compliance, Minimum Tangible Adjusted Net Worth   $ 26,000,000 $ 30,000,000
Lenders [Member]      
Class of Warrant or Right, Exercised During Period 35,000    
Proceeds from Warrant Exercises $ 156,000