Notes Payable and Long-Term Debt (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2010	May. 26, 2010	Dec. 31, 2009	Mar. 19, 2009
Debt Instrument [Line Items]
Derivative, Notional Amount							$ 9,000		$ 3,000
Derivative, fixed interest rate							8.49%		7.02%
Cash flow hedge, derivative instrument liabilities at fair value	$ 1,569		$ 1,569		$ 1,238
Unrealized loss on interest rate swap	157	$ (50)	218	$ 124	225
Available-for-sale securities pledged as collateral	$ 1,500		$ 1,500		$ 1,494
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Cash flow hedge, liability at fair value								$ 268
Cash Flow Hedging [Member]
Debt Instrument [Line Items]
Cash flow hedge, liability at fair value						$ 1,301