Note 12. Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Deferred revenue	$ 24	$ 379
Allowance for doubtful accounts	149	149
Stock options	108	156
Transaction costs	46	49
Other	138	39
Total deferred tax asset	465	772
Liabilities:
Prepaid expenses	(15)	(23)
Basis difference in fixed assets	(188)	(14)
Capitalized software	0	(94)
Purchase of intangibles	(459)	(522)
Other	0	(4)
Total deferred tax liability	(662)	(657)
Total net deferred tax asset/(liability)	(197)	$ 115
Change
Assets:
Deferred revenue	(355)
Allowance for doubtful accounts	0
Stock options	(48)
Transaction costs	(3)
Other	99
Total deferred tax asset	(307)
Liabilities:
Prepaid expenses	8
Basis difference in fixed assets	(174)
Capitalized software	94
Purchase of intangibles	63
Other	4
Total deferred tax liability	(5)
Total net deferred tax asset/(liability)	$ (312)