Restatement of Financial Statements (Impact of Restatement on Consolidated Statement of Operations) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Amortization	$ 76	$ 200
Total operating costs and expense	50,517	55,670
Operating loss	(3,928)	(6,217)
Other income, net	829	888
Loss Before Income Taxes	(3,099)	(5,329)
Income tax benefit	(964)	(1,315)
Net Loss	$ (2,135)	$ (4,014)
Net loss basic and diluted	$ (0.10)	$ (0.19)
Previously Reported [Member]
Amortization	$ 200
Total operating costs and expense	50,641
Operating loss	(4,052)
Other income, net	897
Loss Before Income Taxes	(3,155)
Income tax benefit	(143)
Net Loss	$ (3,012)
Net loss basic and diluted	$ (0.14)
Adjustment [Member]
Amortization	$ (124)
Total operating costs and expense	(124)
Operating loss	124
Other income, net	(68)
Loss Before Income Taxes	56
Income tax benefit	(821)
Net Loss	$ 877
Net loss basic and diluted	$ 0.04