Debt - Lines Of Credit (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Line of Credit Facility [Line Items]
Credit line capacity	$ 14,556,000
Balance outstanding	8,147,000	9,061,000
Itau Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	5.00%
Credit line capacity	3,000,000
Balance outstanding	1,628,000	1,999,000
Bank of Chile [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	6.40%
Credit line capacity	2,250,000
Balance outstanding	1,534,000	2,079,000
BICE Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	5.00%
Credit line capacity	1,700,000
Balance outstanding	1,315,000	516,000
Corp Banca [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	0.00%
Credit line capacity	0
Balance outstanding	0	(47,000)
BBVA Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	5.00%
Credit line capacity	2,000,000
Balance outstanding	998,000	523,000
Penta Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	8.20%
Credit line capacity	1,000,000
Balance outstanding	907,000	946,000
Security Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	7.26%
Credit line capacity	1,300,000
Balance outstanding	907,000	1,075,000
BCI [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	0.00%
Credit line capacity	0
Balance outstanding	0	198,000
Estado Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	5.44%
Credit line capacity	2,000,000
Balance outstanding	858,000	1,772,000
Sabadell Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	4.50%
Credit line capacity	206,000
Balance outstanding	0	0
Bilbao Vizcaya Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	4.72%
Credit line capacity	344,000
Balance outstanding	0	0
Banco Popular [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	6.09%
Credit line capacity	275,000
Balance outstanding	0	0
Deutsche Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	4.00%
Credit line capacity	206,000
Balance outstanding	0	0
Santander Bank [Member]
Line of Credit Facility [Line Items]
Interest rate on borrowings at March 31, 2014	4.50%
Credit line capacity	275,000
Balance outstanding	$ 0	$ 0