Note 12. Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets:
Net operating loss	$ 69	$ 179
Deferred revenue	122	138
Allowance for doubtful accounts	88	142
Stock options	184	298
Basis difference in intangible assets	9	80
Prepaid D&O Insurance	2	6
Foreign tax credits carryforward	1,181	1,181
Other	0	37
Total deferred tax asset	1,655	2,061
Less: valuation allowance	(1,181)	(1,194)
Total net deferred tax asset	474	867
Liabilities:
Prepaid expenses	(35)	(38)
Capitalized software	(475)	(492)
Purchase of intangibles	(534)	(263)
Other	(3)	0
Total deferred tax liability	(1,047)	(793)
Total net deferred tax asset / (liability)	(573)	$ 74
Change
Assets:
Net operating loss	(110)
Deferred revenue	(16)
Allowance for doubtful accounts	(54)
Stock options	(114)
Basis difference in intangible assets	(71)
Prepaid D&O Insurance	(4)
Foreign tax credits carryforward	0
Other	(37)
Total deferred tax asset	(406)
Less: valuation allowance	13
Total net deferred tax asset	(393)
Liabilities:
Prepaid expenses	3
Capitalized software	17
Purchase of intangibles	(271)
Other	(3)
Total deferred tax liability	(254)
Total net deferred tax asset / (liability)	$ (647)