Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Income tax provision	$ 4,230,000	$ 2,166,000	$ 5,683,000	$ 4,373,000
Effective Income Tax Rate Reconciliation, Percent	31.00%	23.60%	29.00%	24.90%
Deferred tax assets	$ 75,600,000		$ 75,600,000
Valuation allowance for deferred tax assets	1,200,000		1,200,000
Uncertain income tax positions	0		$ 0		$ 0
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward					$ 158,900,000
Operating loss carryforward, expiration date			Dec. 31, 2029
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	21,600,000		$ 21,600,000
Valuation allowance related to state loss carryforwards	$ 21,600,000		$ 21,600,000