Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Current assets:
Cash and cash equivalents	$ 2,726	$ 50,752
Short-term investments		19,960
Trade accounts receivable, net of allowance of $376 and $280	49,756	16,229
Current portion of notes receivable	5,290	3,806
Inventories, net	149,548	83,894
Costs and estimated earnings in excess of billings	12,400
Deferred income tax assets	7,056	6,689
Prepaid expenses and other current assets	6,327	5,898
Total current assets	233,103	187,228
Rental equipment, net	36,908	27,853
Property, plant and equipment, net	48,480	34,433
Goodwill	1,843	1,843
Non-current deferred income tax assets	594	307
Non-current notes receivable		1,687
Prepaid income taxes	6,201	5,479
Other assets	96	192
Total assets	327,225	259,022
Current liabilities:
Accounts payable trade	16,737	17,187
Accrued expenses and other current liabilities	16,638	13,978
Deferred revenue	1,093	8,641
Deferred income tax liabilities	12	111
Income tax payable	159	1,275
Total current liabilities	34,639	41,192
Long-term debt	931
Non-current deferred income tax liabilities	2,597	2,843
Total liabilities	38,167	44,035
Commitments and contingencies
Stockholders’ equity:
Preferred stock, 1,000,000 shares authorized, no shares issued and outstanding
Common stock, $.01 par value, 20,000,000 shares authorized,12,942,066 and 12,802,160 shares issued and outstanding	129	128
Additional paid-in capital	65,985	60,633
Retained earnings	224,008	154,451
Accumulated other comprehensive loss	(1,064)	(225)
Total stockholders’ equity	289,058	214,987
Total liabilities and stockholders’ equity	$ 327,225	$ 259,022