Stockholders' Equity - Schedule of Share-based Compensation, Activity (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	447,666	706,421
Options Outstanding, Granted
Options Outstanding, Exercised	(6,000)	(17,122)
Options Outstanding, Cancelled	(31,788)	(241,633)
Options Outstanding, Balance	409,878	447,666
2008 Equity Incentive Plan [Member]
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	430,000
Options Outstanding, Granted
Options Outstanding, Exercised	(6,000)
Options Outstanding, Cancelled	(28,455)
Options Outstanding, Balance	395,545	430,000
2005 Stock Option Plan [Member]
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	17,333	64,833
Options Outstanding, Granted
Options Outstanding, Exercised		(667)
Options Outstanding, Cancelled	(3,333)	(46,833)
Options Outstanding, Balance	14,000	17,333
Supplemental Stock Option Agreement [Member]
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	333
Options Outstanding, Granted
Options Outstanding, Exercised
Options Outstanding, Cancelled
Options Outstanding, Balance	333	333
2008 Stock Option Plan [Member]
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	430,000	641,255
Options Outstanding, Exercised		(16,455)
Options Outstanding, Cancelled		(194,800)
Options Outstanding, Balance		430,000
1998 Stock Option/Stock Issuance Plan [Member]
Note 9 - Stockholders' Equity (Details) - Summary of Inactive Plans [Line Items]
Options Outstanding, Balance	333	333
Options Outstanding, Exercised
Options Outstanding, Balance		333