Note 6 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Accrued expenses	$ 139	$ 65
Net operating loss carryover	8,154	8,792
Goodwill and other intangibles	1,205	1,665
Deferred compensation	70	135
Depreciation		39
Other carryovers and credits	12	12
Total deferred tax assets	9,580	10,708
Deferred tax liabilities:
Prepaid expenses	(7)	(20)
Depreciation	(12)
Deferred revenue	33
Total deferred tax liabilities	14	(20)
Valuation Allowance	(9,594)	(10,688)
Net non-current deferred taxes