Note 15 - Commitments and Contingencies (Details Textual)	12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 NZD	Jun. 30, 2017 USD ($)
TOFR [Member]
Fund Expense Ratio, Maximum Threshold, Percent			0.55%	0.55%
MENU [Member]
Fund Expense Ratio, Maximum Threshold, Percent			0.65%	0.65%
Class A Share Class [Member]
Fund Expense Ratio, Maximum Threshold, Percent			1.30%	1.30%
Class I Share Class [Member]
Fund Expense Ratio, Maximum Threshold, Percent			0.95%	0.95%
General Security Lease Agreement [Member]
Operating Lease Arrangement, Collateral Amount			NZD 110,000	$ 80,634
Lease Arrangement for Primary Facility [Member]
Operating Lease Arrangement, Collateral Amount			NZD 20,000	$ 15,000
Gourmet Foods [Member] | Leased Factory and Warehouse Located in Tauranga, New Zealand [Member]
Lessor, Operating Lease, Term of Contract	3 years
Lessor, Operating Lease, Renewal Term	3 years
Operating Lease, Monthly Rent	$ 11,853
Brigadier [Member] | Leased Office and Storage Facilities Located in Saskatoon, Saskatchewan [Member]
Operating Lease, Monthly Rent	4,354
Wainwright [Member] | USCF [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	84,000	$ 63,000
Wainwright [Member] | Leased Office Space in Oakland, California [Member]
Operating Leases, Rent Expense, Net	$ 146,000	$ 139,000
USCF [Member]
Defined Contribution Plan, Minimum Age Requirement for Participation	21 years
Defined Contribution Plan, Minimum Years of Service Requirement	1 year