DEFERRED TAX LIABILITY, NET (Summary of Deferred Tax Liability) (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Schedule Of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred tax asset — current (accrual of employee social insurance)	$ 89,193	$ 89,114
Deferred tax liability — current (net investment in sales-type leases)	(1,310,267)	(1,035,337)
Deferred tax liability, net of deferred tax asset - current	(1,310,267)	(1,035,337)
Deferred tax asset — noncurrent (depreciation of fixed assets)	24,633,906	30,310,142
Deferred tax liability — noncurrent (net investment in sales-type leases)	(11,600,217)	(13,302,537)
Deferred tax liability, net of deferred tax asset - noncurrent	$ (11,600,217)	$ (13,302,537)