Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
FINANCIAL ASSETS:
Accrued interest receivable	$ 697	$ 725
Carrying Amount
FINANCIAL ASSETS:
Cash	16,367	11,167
Loans, net	157,454	165,355
Accrued interest receivable	697	863
FINANCIAL LIABILITIES:
Notes payables	59,057	59,030
Bank borrowings	107,977	110,280
Other financial liabilities	102	104
Fair Value
FINANCIAL ASSETS:
Cash	16,367	11,167
Loans, net	160,954	168,383
Accrued interest receivable	697	863
FINANCIAL LIABILITIES:
Notes payables	60,820	60,833
Bank borrowings	110,823	111,371
Other financial liabilities	102	104
Fair Value | Quoted Prices in Active Markets for Identical Assets Level 1
FINANCIAL ASSETS:
Cash	16,367
Loans, net	0
Accrued interest receivable	0
FINANCIAL LIABILITIES:
Notes payables	0
Bank borrowings	0
Other financial liabilities	0
Fair Value | Significant Other Observable Inputs Level 2
FINANCIAL ASSETS:
Cash	0
Loans, net	0
Accrued interest receivable	0
FINANCIAL LIABILITIES:
Notes payables	0
Bank borrowings	0
Other financial liabilities	0
Fair Value | Significant Unobservable Inputs Level 3
FINANCIAL ASSETS:
Cash	0
Loans, net	160,954
Accrued interest receivable	697
FINANCIAL LIABILITIES:
Notes payables	60,820
Bank borrowings	110,823
Other financial liabilities	$ 102