(9) Income Taxes (Detail) - (Table 4) (USD $)	Mar. 31, 2013
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 2,578,000
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	2,578,000
Domestic Tax Authority | 2029
Operating Loss Carryforwards [Line Items]
2029	1,163,000
Domestic Tax Authority | 2030
Operating Loss Carryforwards [Line Items]
2030	$ 1,415,000