Note 5 - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Net operating loss carry forwards	$ 2,929	$ 3,163
Federal Research and Development Credit	192
Deferred revenue	165	$ 157
Allowance for doubtful accounts and other receivable	78	80
Share-based compensation expense	769	604
Foreign subsidiaries	529	464
Depreciation	479	174
Other	38	$ 166
Federal Alternative Minimum Tax	116
Total deferred tax assets	5,295	$ 4,808
Deferred tax liabilities:
Goodwill	307	128
Capitalized software development costs	723	622
Total deferred tax liabilities	1,030	750
Net deferred taxes	$ 4,265	$ 4,058