3. Stock-Based Compensation (Details 1) - $ / shares	3 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Stock-based Compensation Details 1
Beginning Balance	1,330,000	1,240,000	1,193,000	1,278,000	1,283,000	1,264,000
Options granted	0	235,000	50,000	0	0	20,000
Options exercised	0	0	0	0	0	0
Options expired or forfeited	(17,000)	(145,000)	(3,000)	(10,000)	(5,000)	(1,000)
Ending Balance	1,313,000	1,330,000	1,240,000	1,268,000	1,278,000	1,283,000
Weighted average price per share, beginning balance	$ .22	$ .24	$ .24	$ .25	$ .26	$ .26
Weighted average price per share, Options granted	0.00	.26	.14	0.00	0.00	.20
Weighted average price per share, Options exercised	0.00	0.00	0.00	0.00	0.00	0.00
Weighted average exercise price per share, Options expired or forfeited	.18	.45	.70	.38	.52	.24
Weighted average price per share, ending balance	$ .22	$ .22	$ .24	$ .25	$ .25	$ .26