Note 9 - Related Party Transactions (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Ameritas Life Insurance Corp [Member]
Note 9 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	$ 53,000	$ 52,000	$ 104,000	$ 108,000
Nebraska Global Investment Company LLC [Member]
Note 9 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	$ 0	$ 0	$ 0	$ 57,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	14.00%		14.00%