5. Other Assets (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Other assets consisted of:
Deposit with Trustee of 6-1/2% debentures	$ 184,000	$ 184,000
Prepaid expenses	2,000	4,000
Other	1,000	5,000
Total Other Assets	$ 187,000	$ 193,000