Future Minimum Rental and Lease Payments (Detail) (USD $)	Dec. 31, 2014
Capital Leases
Operating and Capital Leases [Line Items]
Capital Leases 2015	$ 248,000
Capital Leases 2016	248,000
Capital Leases 2017	0
Capital Leases 2018	0
Capital Leases 2019	0
Capital Leases, Total minimum lease payments	496,000
Less amount representing interest	22,000
Present value of minimum lease payments	474,000
Current portion	232,000
Long-term portion	242,000
Operating Leases
Operating and Capital Leases [Line Items]
Operating Leases 2015	4,471,000
Operating Leases 2016	3,633,000
Operating Leases 2017	1,967,000
Operating Leases 2018	488,000
Operating Leases 2019	71,000
Operating Leases, Total minimum lease payments	$ 10,630,000

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Amount of minimum lease payments for capital leases.

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-SubTopic 30

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Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount necessary to reduce minimum lease payments to present value for sale-leaseback transactions accounted for using the deposit method or as a financing.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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