Income Taxes (Income Tax Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Provision (benefit) for federal income taxes at statutory rates	$ (889)	$ 1,247	$ 784
Provision for state income taxes, net of federal benefit	120	688	76
Valuation allowance changes affecting the provision for income taxes	(45)	(534)	(66)
Employment tax credits	(529)	(1,249)	(169)
Nondeductible expenses	453	862	123
Stock based compensation expense	(62)	(105)	3
Other	(78)	7	106
Provision (benefit) for income taxes of continuing operations	$ (1,030)	$ 916	$ 857