Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Capital Stock, Stock Plans and Stock-based Compensation (Details Textual)

Note 5 - Capital Stock, Stock Plans and Stock-based Compensation (Details Textual) - USD ($)		3 Months Ended		6 Months Ended
	May 15, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
The 2010 Stock Option Plan [Member] \| Executive Vice President [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	50,000
The 2010 Stock Option Plan [Member] \| Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
The 2010 Stock Option Plan [Member] \| Non-qualified Stock Options [Member]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 3.97
The 2003 Outside Directors Stock Plan [Member]
Stock Issued During Period, Shares, Share-based Compensation, Gross				30,741
Allocated Share-based Compensation Expense				$ 124,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures				50,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price				$ 3.97
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit				2.79
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit				$ 14.75
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 109,000		$ 109,000
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost Not Yet Recognized, Remainder of Fiscal Year		32,000		32,000
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost not yet Recognized in Year Two		46,000		46,000
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized in Year Three		30,000		30,000
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized In Year Four		1,000		1,000
Allocated Share-based Compensation Expense		$ 17,000	$ 13,000	$ 45,000	$ 46,000