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

Net Investment in Sales-type Leases (Schedule of Company's Net Investment in Sales-type Leases) (Details)

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Net Investment in Sales-type Leases (Schedule of Company's Net Investment in Sales-type Leases) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Net Investment in Sales-type Leases [Abstract]    
Future minimum lease payments receivable $ 19,403 $ 14,169
Less allowance for doubtful accounts (183) (301)
Net future minimum lease payment receivable 19,220 13,868
Less unearned interest income (1,305) (862)
Net investment in sales-type leases $ 17,915 $ 13,006