Schedule of intangible assets (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 30, 2017	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross, Total	$ 2,338,500	$ 2,338,500
Intangible Assets, Accumulated Amortization, Total		(434,231)
Intangible Assets, Net	1,732,984	$ 1,904,269
Indefinite Lived Assets, Accumulated Amortization	$ (605,516)
Medicare License
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life (Yrs)	0 years	0 years
Intangible Assets, Gross, Total	$ 704,000	$ 704,000
Intangible Assets, Accumulated Amortization, Total		0
Intangible Assets, Net	704,000	$ 704,000
Indefinite Lived Assets, Accumulated Amortization	$ 0
Acquired Technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life (Yrs)	5 years	5 years
Intangible Assets, Gross, Total	$ 1,312,500	$ 1,312,500
Intangible Assets, Accumulated Amortization, Total		(262,500)
Intangible Assets, Net	918,750	$ 1,050,000
Indefinite Lived Assets, Accumulated Amortization	$ (393,750)
Network relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life (Yrs)	5 years	5 years
Intangible Assets, Gross, Total	$ 220,000	$ 220,000
Intangible Assets, Accumulated Amortization, Total		(117,331)
Intangible Assets, Net	80,667	$ 102,669
Indefinite Lived Assets, Accumulated Amortization	$ (139,333)
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life (Yrs)	5 years	5 years
Intangible Assets, Gross, Total	$ 102,000	$ 102,000
Intangible Assets, Accumulated Amortization, Total		(54,400)
Intangible Assets, Net	29,567	$ 47,600
Indefinite Lived Assets, Accumulated Amortization	$ (72,433)