Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Net Investment in Sales-type Leases (Details)

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Net Investment in Sales-type Leases (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Future minimum lease payments receivable $ 14,169 $ 9,678
Less allowance for doubtful accounts (301) (230)
Net future minimum lease payment receivable 13,868 9,448
Less unearned interest income (862) (658)
Net investment in sales-type leases $ 13,006 $ 8,790