Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Future minimum annual capital and operating lease payments

Future minimum rental commitments under capital and operating leases for years ending December 31 are as follows:

		Capital		Operating
		leases		leases
2013	$	62,000	$	642,000
2014		21,000		-
2015		-		-
2016		-		-
2017		-		-
Thereafter		-		-
Total minimum lease payments		83,000	$	642,000
Less: Amount representing interest		(15,000)
Present value of capital lease obligations		68,000
Less: Current portion		(48,000)
Long-term obligation at December 31, 2012	$	20,000