4. Investments (Details - Unrealized losses) - USD ($) $ in Thousands	12 Months Ended	132 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2005
Less Than 12 Months, Fair Value	$ 621	$ 621
12 Months or Greater, Fair Value	631	631
Total, Fair Value	1,252	1,252
Unrealized Losses	$ (183)
Common Stocks and ETF's [Member]
Less Than 12 Months, Fair Value			$ 225
12 Months or Greater, Fair Value			152
Total, Fair Value			377
Unrealized Losses		(94)
Common Stocks and ETF's [Member] | Less Than 12 Months [Member]
Unrealized Losses		(72)
Common Stocks and ETF's [Member] | 12 Months or Greater [Member]
Unrealized Losses		(22)
Mutual Fund [Member]
Less Than 12 Months, Fair Value			26
12 Months or Greater, Fair Value			0
Total, Fair Value			26
Unrealized Losses		(1)
Mutual Fund [Member] | Less Than 12 Months [Member]
Unrealized Losses		(1)
Mutual Fund [Member] | 12 Months or Greater [Member]
Unrealized Losses		0
Preferred Securities [Member]
Less Than 12 Months, Fair Value			0
12 Months or Greater, Fair Value			0
Total, Fair Value			0
Unrealized Losses		0
Preferred Securities [Member] | Less Than 12 Months [Member]
Unrealized Losses		0
Preferred Securities [Member] | 12 Months or Greater [Member]
Unrealized Losses		0
Corporate Bonds [Member]
Less Than 12 Months, Fair Value			370
12 Months or Greater, Fair Value			479
Total, Fair Value			$ 849
Unrealized Losses		(88)
Corporate Bonds [Member] | Less Than 12 Months [Member]
Unrealized Losses		(32)
Corporate Bonds [Member] | 12 Months or Greater [Member]
Unrealized Losses		$ (56)