Long-Term Debt, Interest Rate Swap and Capitalized Lease Obligations (Interest Rate Swap Cash Flow Hedge) (Narrative) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Accumulated other comprehensive income (loss)	$ 195,000	$ (387,000)
Interest rate swap
Derivative [Line Items]
Notional amount of interest rate swap	$ 29,329,000
Long-term debt fixed based on the interest rate swap	5.79%
Net liability of interest rate swap	$ 129,000
Accumulated other comprehensive income (loss)	(80,000)
Income tax benefit, interest rate swap	$ 49,000