Debt - Lines Of Credit (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Credit line capacity	$ 13,867,000
Balance Outstanding	$ 8,358,000	$ 7,658,000
Itau Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	6.00%
Credit line capacity	$ 1,800,000
Balance Outstanding	$ 1,171,000	965,000
Bank of Chile
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	5.50%
Credit line capacity	$ 2,250,000
Balance Outstanding	$ 1,572,000	1,410,000
BICE Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	6.16%
Credit line capacity	$ 2,300,000
Balance Outstanding	$ 1,088,000	1,249,000
BBVA Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	5.00%
Credit line capacity	$ 2,300,000
Balance Outstanding	$ 1,552,000	795,000
Penta Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	7.58%
Credit line capacity	$ 1,200,000
Balance Outstanding	$ 631,000	1,008,000
Security Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	6.16%
Credit line capacity	$ 940,000
Balance Outstanding	$ 305,000	361,000
Estado Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	5.30%
Credit line capacity	$ 2,800,000
Balance Outstanding	$ 2,039,000	1,870,000
BBVA Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings at June 30, 2015	4.75%
Credit line capacity	$ 277,000
Balance Outstanding	$ 0	$ 0