Note 3 - Carrying Amounts of Assets and Liabilities and Maximum Loss Exposure (Details) AUD in Thousands, $ in Thousands	Mar. 31, 2016 AUD	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Mission Providence [Member] \| Other Assets [Member]
Other Assets		$ 6,960	$ 9,324
Mission Providence [Member] \| Accrued Expenses [Member]
Equity Method Investments, Commitment to Fund Joint Venture		1,531	4,654
Mission Providence [Member]
Equity Method Investments, Commitment to Fund Joint Venture	AUD 4,286	3,287
Maximum Exposure to Loss		$ 6,960	$ 9,324

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant