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DEFERRED TAX (Summary of Deferred Tax Liability) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Schedule Of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred tax liability, net	$ 12,201,609	$ 11,884,068	$ (11,884,068)
Deferred Tax Liabilities, Net, Current	(1,351,555)	(1,442,317)
Accrual of system maintenance cost [Member]
Schedule Of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred Tax Assets, Net, Noncurrent	69,918		70,551
Depreciation of fixed assets [Member]
Schedule Of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred Tax Assets, Net, Noncurrent	30,281,311		31,308,695
Net investment in sales-type leases [Member]
Schedule Of Deferred Income Tax Assets and Liabilities [Line Items]
Deferred Tax Liabilities, Net, Current	(1,351,555)		(1,442,317)
Deferred Tax Assets, Net, Noncurrent	$ (42,552,838)		$ (43,263,314)

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed within one year or operating cycle, if longer.

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