Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Stock-based Compensation (Details Textual)

v3.5.0.2
Note 8 - Stock-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 29, 2016
Feb. 29, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Stock Appreciation Rights (SARs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage             33.33%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period             5 years
RSU's and Restricted Stock [Member] | Director [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.33%            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period             3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   1,300,000          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 0.25          
RSU's and Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period             3 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized             2,450,000
Allocated Share-based Compensation Expense     $ 20 $ 500 $ 100 $ 700