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SEGMENT REPORTING (Details) (USD $)
3 Months Ended 6 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2014
Segment Reporting Information [Line Items]            
Revenues $ 2,526,762us-gaap_Revenues $ 2,092,525us-gaap_Revenues   $ 8,225,267us-gaap_Revenues $ 7,882,374us-gaap_Revenues  
Cost of revenues 1,220,577us-gaap_CostOfRevenue 948,514us-gaap_CostOfRevenue   4,304,591us-gaap_CostOfRevenue 5,077,085us-gaap_CostOfRevenue  
Gross profit 1,306,185us-gaap_GrossProfit 1,144,011us-gaap_GrossProfit   3,920,676us-gaap_GrossProfit 2,805,289us-gaap_GrossProfit  
Depreciation and amortization 32,100us-gaap_DepreciationDepletionAndAmortization 46,057us-gaap_DepreciationDepletionAndAmortization 103,041us-gaap_DepreciationDepletionAndAmortization 140,464us-gaap_DepreciationDepletionAndAmortization 103,041us-gaap_DepreciationDepletionAndAmortization  
Total capital expenditures 56,978us-gaap_PaymentsToAcquirePropertyPlantAndEquipment 10,333us-gaap_PaymentsToAcquirePropertyPlantAndEquipment   84,086us-gaap_PaymentsToAcquirePropertyPlantAndEquipment 203,702us-gaap_PaymentsToAcquirePropertyPlantAndEquipment  
Total assets 8,101,731us-gaap_Assets 4,518,347us-gaap_Assets   8,101,731us-gaap_Assets 4,518,347us-gaap_Assets 5,713,954us-gaap_Assets
Shipping Agency and Ship Management Services [Member]            
Segment Reporting Information [Line Items]            
Revenues 1,231,182us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
1,226,015us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  4,690,972us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
4,628,578us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Cost of revenues 980,136us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
825,181us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  3,756,926us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
3,598,641us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Gross profit 251,046us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
400,834us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  934,046us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
1,029,937us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Depreciation and amortization 29,511us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
19,852us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  132,203us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
74,525us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Total capital expenditures 56,978us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
1,472us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  84,086us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
193,001us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Total assets 7,869,985us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
3,099,046us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
  7,869,985us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
3,099,046us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAgencyServicesMember
 
Shipping & Chartering Services [Member]            
Segment Reporting Information [Line Items]            
Revenues 0us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
0us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
1,937,196us-gaap_Revenues
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Cost of revenues 0us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
0us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
1,291,048us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Gross profit 0us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
0us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
646,148us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Depreciation and amortization 0us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
233us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
699us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Total capital expenditures 0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Total assets 0us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
446,594us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
  0us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
446,594us-gaap_Assets
/ sino_ServiceAxis
= sino_ShippingAndCharteringServicesMember
 
Inland Transportation Management Services [Member]            
Segment Reporting Information [Line Items]            
Revenues 1,295,580us-gaap_Revenues
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
866,510us-gaap_Revenues
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  3,534,295us-gaap_Revenues
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
1,316,600us-gaap_Revenues
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
 
Cost of revenues 240,441us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
123,333us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  547,665us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
187,396us-gaap_CostOfRevenue
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
 
Gross profit 1,055,139us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
743,177us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  2,986,630us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
1,129,204us-gaap_GrossProfit
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
 
Depreciation and amortization 2,589us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
9,324us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  8,261us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
27,817us-gaap_DepreciationDepletionAndAmortization
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
 
Total capital expenditures 0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
8,861us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
10,701us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
 
Total assets $ 231,746us-gaap_Assets
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
$ 972,707us-gaap_Assets
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
  $ 231,746us-gaap_Assets
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember
$ 972,707us-gaap_Assets
/ sino_ServiceAxis
= sino_InlandTransportationManagementServicesMember