Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Cash received from customers	$ 121,839	$ 106,298	$ 93,874
Cash paid to suppliers and employees	(21,694)	(19,594)	(16,595)
Cash paid for income taxes	(6,983)	(791)	(1,054)
Interest paid	(2,381)	(2,446)	(2,512)
Interest received		1	1
Net cash provided by operating activities	90,781	83,468	73,714
Cash flows from investing activities:
Investment in lease and service contracts	(90,777)	(77,684)	(77,794)
Investment in direct costs	(1,595)	(1,120)	(1,124)
Investment in property and equipment	(221)	(831)	(717)
Net cash used in investing activities	(92,593)	(79,635)	(79,635)
Cash flows from financing activities:
Proceeds from secured debt	129,180	106,446	103,270
Repayment of secured debt	(121,540)	(106,356)	(92,526)
Payments of debt closing costs	(693)	(112)	(714)
(Increase) decrease in restricted cash	(831)	371	81
Repayment of capital leases	(1)	(25)	(67)
Repurchase of common stock		(239)	(139)
Proceeds from stock option exercises	238
Payment of dividends	(3,436)	(2,994)	(2,847)
Net cash provided by (used in) financing activities	2,917	(2,909)	7,058
Net change in cash and cash equivalents	1,105	924	1,137
Cash and cash equivalents, beginning	2,452	1,528	391
Cash and cash equivalents, ending	3,557	2,452	1,528
Reconciliation of net income to net cash provided by operating activities:
Net income	9,351	8,991	5,296
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of unearned income, net of initial direct costs	(40,008)	(37,032)	(34,398)
Depreciation and amortization	4,355	3,270	2,212
Provisions	19,490	18,250	23,148
Recovery of equipment cost and residual value	96,970	84,267	74,007
Stock-based compensation expense	191	138	122
(Decrease) increase in deferred income taxes liability	(934)	3,706	2,764
Changes in assets and liabilities:
(Decrease) increase in income taxes payable	(107)	760	(209)
Decrease (increase) in other assets	128	599	(72)
Increase in accounts payable	1,020	465	719
Increase (decrease) in other liabilities	325	54	125
Net cash provided by operating activities	90,781	83,468	73,714
Supplemental disclosure of non-cash activities:
Fair value of stock issued for compensation	346	354	295
Acquisition of property and equipment through lease incentives		$ 791