Commitments and contingencies (Details 1) (USD $)	Jun. 30, 2014
Contractual Obligation
Total	$ 6,797,743
2015	3,380,972
2016	1,877,972
2017	1,538,799
Beyond 2017
Notes payable.
Contractual Obligation
Total	915,000
2015	915,000
2016
2017
Beyond 2017
Rent obligations
Contractual Obligation
Total	1,121,495
2015	677,738
2016	339,958
2017	103,799
Beyond 2017
Accrued board fees
Contractual Obligation
Total	210,625
2015	210,625
2016
2017
Beyond 2017
Consulting agreement
Contractual Obligation
Total	150,000
2015	150,000
2016
2017
Beyond 2017
Employee contracts
Contractual Obligation
Total	3,808,014
2015	835,000
2016	1,538,014
2017	1,435,000
Beyond 2017
Accrued interest
Contractual Obligation
Total	592,609
2015	592,609
2016
2017
Beyond 2017