Commitments and Contingencies - Narrative (Details)					12 Months Ended
	Apr. 05, 2017 USD ($)	Mar. 31, 2017 USD ($)	Nov. 07, 2016 USD ($)	Jul. 31, 2014 building	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 EUR (€)	Mar. 14, 2013 USD ($)
Loss Contingencies [Line Items]
Operating lease expenses					$ 1,200,000	$ 2,100,000
Number of buildings sold | building				3
Depreciation and amortization					3,072,000	2,778,000
Current portion of lease obligation					15,856,000	313,000
Capital lease obligation, non-current portion					283,000	16,217,000
Security deposit					4,414,000	4,414,000
Long-term debt					13,533,000	15,832,000
Property, plant and equipment, net					2,859,000	5,387,000
Income taxes paid					738,000	72,000
Workers compensation liability					1,200,000	1,100,000
Tax Authority, Spain | Foreign Tax Authority | Agel Enterprises LLC | AEI | Tax and Penalty Assessment
Loss Contingencies [Line Items]
Income taxes paid							$ 269,000
Income tax examination, interest accrued					1,348			€ 1,282
Cash paid for taxes and interest							420,000
Withholding tax examination, interest accrued					11,381			€ 10,819
Tax Authority, Spain | Foreign Tax Authority | Agel Enterprises LLC | AEI | Tax and Penalty Assessment | Accrued Liabilities
Loss Contingencies [Line Items]
Withholding and income tax examination, assessment, penalties and interest accrued					500,000
Software, Hardware, and Office Equipment
Loss Contingencies [Line Items]
Depreciation and amortization					202,000	(462,000)
Current portion of lease obligation					146,000	240,000
Capital lease obligation, non-current portion					283,000	507,000
Buildings and improvements
Loss Contingencies [Line Items]
Property, plant and equipment, net					1,000,000
Promissory Note
Loss Contingencies [Line Items]
Debt, principal amount									$ 4,000,000
Long-term debt					2,750,000	3,003,000
Sale Leaseback Agreement
Loss Contingencies [Line Items]
Property, plant and equipment, net					13,900,000	14,700,000
Pending Litigation | Breach of Note
Loss Contingencies [Line Items]
Damages sought, value			$ 25,000
Pending Litigation | Breach of Guarantee
Loss Contingencies [Line Items]
Damages sought, value			25,000
Pending Litigation | Unjust Enrichment
Loss Contingencies [Line Items]
Damages sought, value			25,000
Pending Litigation | Promissory Estoppel
Loss Contingencies [Line Items]
Damages sought, value			$ 25,000
Foreclosure | Subsequent event
Loss Contingencies [Line Items]
Damages sought, value	$ 715,000
Affiliated Entity | Sale Leaseback Agreement
Loss Contingencies [Line Items]
Current portion of lease obligation					15,700,000	73,000
Capital lease obligation, non-current portion					$ 0	15,700,000
Affiliated Entity | Sale Leaseback Agreement | Capital Lease Obligations
Loss Contingencies [Line Items]
Useful lives used for depreciation and amortization				15 years	15 years
Interest expense recognized on leases					$ 2,200,000	2,200,000
Depreciation and amortization					1,100,000	1,100,000
Gain on sale of real estate					168,000	$ 168,000
Affiliated Entity | Real Estate Taxes Assessed | Subsequent event
Loss Contingencies [Line Items]
Sale leaseback transaction, demands		$ 102,000
Affiliated Entity | Unpaid Basic Rent | Subsequent event
Loss Contingencies [Line Items]
Sale leaseback transaction, demands		151,000
Affiliated Entity | Late Fees | Subsequent event
Loss Contingencies [Line Items]
Sale leaseback transaction, demands		8,000
Affiliated Entity | Real Estate Taxes Paid by CFI NNN Raiders | Subsequent event
Loss Contingencies [Line Items]
Sale leaseback transaction, demands		103,000
Affiliated Entity | Unpaid Basic Balance, Interest at Default Rate on Sums Due from Date due to Date Paid | Subsequent event
Loss Contingencies [Line Items]
Sale leaseback transaction, demands		$ 15,681,000
Tamala L. Longaberger
Loss Contingencies [Line Items]
Related party notes payable							$ 1,000,000
Tamala L. Longaberger | Related Party Payables
Loss Contingencies [Line Items]
Interest payable					$ 251,000
Tamala L. Longaberger | Promissory Notes
Loss Contingencies [Line Items]
Interest rate on related party notes payable							10.00%