Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Tax benefit of operating loss carry forward	$ 10,385	$ 14,280
Reserves and allowances	148	172
Accrued expenses	73	79
Charitable contributions	190	184
Stock-based compensation	846	543
Fixed assets	330	229
Texas margin tax temporary credit	246	253
Total deferred tax assets	12,218	15,740
Valuation allowance	(11,844)	(15,099)
Net deferred tax assets	374	641
Deferred tax liabilities:
481(a) adjustment	2	3
Goodwill	309	135
Intangible amortization	372	645
Total deferred tax liabilities	683	783
Net deferred tax liability	$ (309)	$ (142)