Long-Term Debt (Schedule of Long-term Debt and Weighted Average Interest) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total principal	$ 60,019	$ 56,971
Deferred financing costs	(496)	(258)
Total long-term debt	59,523	56,713
Less current portion	(17,482)	(5,697)
Long-term portion	42,041	51,016
Capital Leases [Member]
Debt Instrument [Line Items]
Total principal	$ 188	$ 523
Weighted-average interest rate	7.06%	6.89%
Credit Agreement - Bank of Montreal [Member]
Debt Instrument [Line Items]
Total principal	$ 40,515	$ 38,203
Weighted-average interest rate	4.43%	4.19%
Credit Agreements - CPL [Member]
Debt Instrument [Line Items]
Total principal	$ 1,949
Weighted-average interest rate	1.77%
Credit Facilities - CPL [Member]
Debt Instrument [Line Items]
Total principal	$ 647
Weighted-average interest rate	3.57%
Credit Agreement - CCB [Member]
Debt Instrument [Line Items]
Total principal	$ 2,429	$ 2,704
Weighted-average interest rate	2.34%	4.94%
Financing Obligation - CDR Land Lease [Member]
Debt Instrument [Line Items]
Total principal	$ 14,291	$ 15,541
Weighted-average interest rate	13.79%	13.44%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	6.74%	6.67%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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