Note 12. Sale of development project (Detail) (USD $)	1 Months Ended				0 Months Ended
	Apr. 30, 2013	May 04, 2013	Mar. 08, 2013	Feb. 02, 2013	Mar. 08, 2013 Additional After Timely First Milestone [Member]	Mar. 08, 2013 Closing Consideration [Member] MoCa [Member]	Mar. 08, 2013 Payroll Expense Reimbursement [Member] MoCa [Member]	Mar. 08, 2013 MoCa [Member]
Number of Employees Transferred			21
Assets		$ 213,504,000		$ 220,831,000				$ 600,000
Revenue Recognition, Milestone Method, Revenue Recognized					5,000,000	2,000,000	600,000
Gain (Loss) on Closing Consideration	1,100,000
Connectivity Assets, Legal Fees, and Bank Services	400,000
Proceeds from Payroll Transfer	$ 600,000